TY - CHAP A1 - Versen, Martin A1 - Bernhardt, A1 - Heigl, M. A1 - Viehhauser, P. A1 - Zentgraf, P. T1 - System for real-time data acquisition and processing on a hail-fighter aeroplane T2 - Proceedings of the 5th European DSP Education and Research Conference N2 - The System HAILsens implements a device for Real-Time sensor data processing, running on a Texas Instruments Concerto M3 core. An I2C interface is used for sensor communications. Ethernet with UDP on a custom developed three layered frame organisation of sensor data serves as a link to the main system on board of an aeroplane. For backing up the acquired data, all frames are locally stored on an SD Card. To have the possibility of easily checking the current system status, an LCD module and a push-button provide a minimal user interface. KW - sensors KW - aircraft instrumentation KW - data acquisition KW - liquid crystal displays Y1 - 2018 ER - TY - CHAP A1 - Versen, Martin A1 - Shankar, S. A1 - Enimidisetty, S. A1 - Bernhardt, A. A1 - Srinivasan, B. T1 - Setup for Locating PV-Cell Surface Defects Through ISC Measurements T2 - Proceedings of the 37th ISTFA 2011 KW - Photovoltaik KW - PV-Cell defects KW - ISC Measurements Y1 - 2018 ER - TY - CHAP A1 - Zentgraf, Peter A1 - Berge, S. A1 - Chasset, C. A1 - Filippi, H. A1 - Gottzein, E. A1 - Gutiérrez-Cañas, I. A1 - Hartrampf, M. A1 - Krauss, P. A. A1 - Kuehl, C. A1 - Lübke- Ossenbeck, B. A1 - Mittnacht, M. A1 - Montenbruck, O. A1 - Müller, C. A1 - Rueda Boldo, P. A1 - Truffi, A. ED - American Astronautical Society, T1 - PREPARING THE GPS-EXPERIMENT FOR THE SMALL GEO MISSION T2 - 33rd ANNUAL AAS GUIDANCE AND CONTROL CONFERENCE N2 - This paper deals with the preparation of the Small GEO mission and the accommodation of a GPS receiver as an experiment. The expected benefits of using the GPS receiver for Small GEO are explained. The feasibility of using GPS for position determination is investigated by simulation using a MosaicGNSS receiver, which was stimulated by a Spirent RF signal generator. A procedure, how to evaluate flight data on ground is outlined. Success criteria of the experiment and the minimal size of the downlink stream required and reserved for the receiver TM are presented. KW - GPS KW - geosynchronous mission KW - Small GEO telecommunications satellite Y1 - 2018 ER - TY - CHAP A1 - Zentgraf, Peter A1 - Berge, S. A1 - Edfors, A. A1 - Olsson, T. A1 - Pionnier, G. A1 - Björk, M. A1 - Chasset, C. A1 - Nordebäck, T. A1 - Rieschel, M. A1 - Lübke- Ossenbeck, B. T1 - Advanced AOCS Design on the First Small GEO Telecom Satellite T2 - 60th International Astronautical Congress, Oct. 12 -16, 2009, Daejon, South Korea N2 - The advanced Attitude and Orbit Control System (AOCS) design of the Small GEO platform is now being adapted for the first commercial mission. The Small GEO telecommunications satellite is a new development to fill a niche in the telecom industry for small platforms weighing about 1.5 tonnes and targeting payloads of 300 kg and 3 kW. The first mission will launch into Geostationary Transfer Orbit (GTO). Small GEO is being developed by a Consortium led by OHBSystem AG. The Swedish Space Corporation is a partner in the Consortium and supplies the AOCS and Electric Propulsion (EP) subsystems. The project is currently in Phase C and the first mission will fly in 2012. This article gives an overview of the AOCS development status. The AOCS architecture is a three-axis stabilized system using reaction wheels for attitude control, star trackers for attitude determination, and EP for orbit control. The AOCS software is being developed using model-based design techniques and test driven development. Results from subsystem level testing of flight code will be presented. The AOCS design is characterized by a number of advances in technology beyond traditional telecom satellite designs. Perhaps the largest deviation from a traditional design is complete reliance on EP for orbit control. Angular momentum management of the reaction wheels relies solely upon EP in the nominal modes. The EP is not used in the safe modes and therefore a cold gas system is included On-board. The cold gas system uses Xenon, the same fuel used by the EP. Another advance is the reliance upon APS-based star trackers. APS (Active Pixel Sensor) star trackers have a number of advantages over their CCD-based cousins in terms of robustness. The traditional fine sun sensor is simplified to a fault tolerant system of solar cells giving low, but more than adequate, accuracy. In addition, a GPS sensor will be flown on-board as an experiment. KW - AOCS (Attitude and orbit control system) design KW - Small Geo Telecom Satellite Y1 - 2018 ER - TY - CHAP A1 - Beneken, Gerd A1 - Marschall, F. A1 - Rausch, A. T1 - A Model Framework Weaving Approach, In: Proceedings of the First Workshop on Models and Aspects - Handling Crosscutting Concerns in MDSD at the 19th European Conference on Object-Oriented Programming (ECOOP 2005) T2 - 19th European Conference on Object-Oriented Programming (ECOOP 2005) N2 - Nowadays, in software development usually various models and description fragments are created. Some of these artifacts describe the core of the application, such as the data model or the user interaction model. Other artifacts describe cross-cutting concerns, such as security or the requirement: “every change of data has to be confirmed by the user, before it is written into the database”. During the development process these artifacts are combined, transformed, and finally implemented manually or even automatically. For instance a designer may combine a model of a dialog component specifying an action, that changes data, with a common description of a generic confirm dialog. The integrated dialog description may be afterwards implemented by a programmer. The manual combination of both artifacts and the transformation of the combined description into code are errorprone and hard to change. Industry basically tests or actually uses two approaches for the combination today: 1. At the level of code and execution Aspect-Oriented Programming (AOP) is used [KLM+97]. An aspect defines a cross-cutting concern and the weaving instructions. A code weaver provides the actual weaving at compile or runtime. 2. At the level of design models and analysis models Model-Driven Software Development (MDSD) is used [KWB03]. A model in MDSD is a first class development artifact. Thus models are significantly more abstract than the implementation of code. However, these models cannot be executed. Hence, a abstract model is transformed into another, typically more detailed. A series of such transformations results in executable code. Thereby, a model transformer or a code generator reads some of the artifacts. The other artifacts and the combination rules are implemented in transformation rules or code generation templates (or somewhere else in the transformation / generation approach). KW - Software Development KW - Aspect-oriented programming (AOP) KW - Model-Driven Software Development (MDSD) Y1 - 2018 ER - TY - CHAP A1 - Beneken, Gerd A1 - Hammerschall, U. A1 - Broy, M. A1 - Cengarle, M.V. A1 - Jürjens, J. A1 - Pretschner, A. A1 - Rumpe, B. A1 - Schönmakers, M. T1 - Componentware – State of the Art, Background Paper for the Understanding Components T2 - Workshop of the CUE Initiative at the Univerita Ca Foscari di Venezia Venice N2 - Components and component-based technologies (componentware) are well-known and widely used in software development. There is a large amount of work and research in componentware. The number of available componentware approaches increases steadily and it is quite difficult to keep track of current trends in this area. In this paper, we survey the current state of the art in componentware, introduce and compare several well-known componentware approaches and classify them according to outstanding characteristics. We discuss a list of open issues in resarch and practical use of componentware and offer some proposals for further development. In our practical considerations we focus on embedded systems and business information systems because most of our partners in industry work in one of these two domains. We hope to start a broader discussion on componentware and to get a common understanding, which open issues are most important in research and industry (as a research agenda). KW - Software Development KW - Componentware Y1 - 2018 ER - TY - JOUR A1 - Beneken, Gerd A1 - Deisenböck, F. T1 - Java Server Faces JF - JavaSpektrum KW - Java KW - Java Server Y1 - 2018 IS - 04/2004 ER - TY - CHAP A1 - Seifert, T. A1 - Beneken, Gerd ED - Beydeda, S. ED - Book, M. ED - Gruhn, V. T1 - Evolution and Maintenance of MDA Applications T2 - Model-Driven Software Development N2 - Abstraction is the most basic principle of software engineering. Abstractions are provided by models. Modeling and model transformation constitute the core of model-driven development. Models can be refined and finally be transformed into a technical implementation, i.e., a software system. The aim of this book is to give an overview of the state of the art in model-driven software development. Achievements are considered from a conceptual point of view in the first part, while the second part describes technical advances and infrastructures. Finally, the third part summarizes experiences gained in actual projects employing model-driven development. Beydeda, Book and Gruhn put together the results from leading researchers in this area, both from industry and academia. The result is a collection of papers which gives both researchers and graduate students a comprehensive overview of current research issues and industrial forefront practice, as promoted by OMG’s MDA initiative. KW - Software Development Y1 - 2005 PB - Springer CY - Berlin ER - TY - JOUR A1 - Klingshirn, H. A1 - Mittrach, R. A1 - Braitmayer, K. A1 - Strobl, R. A1 - Bender, A. A1 - Grill, E. A1 - Müller, Martin T1 - RECAPDOC - a questionnaire for the documentation of rehabilitation care utilization in individuals with disorders of consciousness in long-term care in Germany: development and pretesting JF - BMC Health Services Research N2 - Background A multitude of different rehabilitation interventions and other specific health care services are offered for individuals with disorders of consciousness in long-term care settings. To investigate the association of those services and patient-relevant outcomes, a specific instrument to document the utilization of those services is needed. The purpose of this study was to develop such a questionnaire administered to caregivers in epidemiological studies or patient registries in Germany. Methods The development process of the RECAPDOC questionnaire was carried out in three steps. Step 1 consisted of a systematic literature review and an online-based expert survey to define the general content. Step 2 was an expert interview to evaluate the preliminary content of the questionnaire. Step 3 was a pretest including cognitive interviews with caregivers. After each step, the results were combined into a new version of the questionnaire. Results The first version of the questionnaire included items on utilization of medical care, medical aids, nursing and therapeutic care. The results of the expert interview led to the integration of five new items and the modification of six other items. The pretest led to some minor modifications of the questionnaire since it was rated as feasible and acceptable. The final questionnaire consisted of 29 items covering the domains “living situation”, “social insurance status”, “utilisation of home health care”, “domestic services”, “outpatient health care”, “specific diagnostic measures”, “adaptive technologies”, “medical aids” and “utilization of therapies”. Also the experience of family support and multidisciplinary collaboration of health professionals is covered. Conclusions The developed questionnaire is a first step to make the situation of patients with disorders of consciousness in the long-term care setting accessible for evaluation in epidemiological studies and in the context of patient registries. However, further reliability and validity studies are needed. KW - Questionnaire development KW - Cognitive Interview KW - Pretest KW - Rehabilitation KW - Long-term care KW - Disorder of consciousness KW - Vegetative state KW - Minimaly conscious state Y1 - 2018 UR - https://doi.org/10.1186/s12913-018-3153-3 VL - 18 SP - 329 ER - TY - JOUR A1 - Müller, Martin A1 - Fischer, U. A1 - Bartoszek, G. A1 - Grill, E. A1 - Meyer, G. ED - Springer Nature, T1 - Impact of joint contractures on functioning and social participation in older individuals--development of a standard set (JointConFunctionSet): study protocol JF - BMC Geriatrics N2 - Background Joint contractures are frequent in older individuals in geriatric care settings. Even though they are used as indicator of quality of care, there is neither a common standard to describe functioning and disability in patients nor an established standardized assessment to describe and quantify the impact of joint contractures on patients’ functioning. Thus, the aim of our study is (1) to develop a standard set for the assessment of the impact of joint contractures on functioning and social participation in older individuals and (2) to develop and validate a standardized assessment instrument for describing and quantifying the impact of joint contractures on the individuals’ functioning. Methods The standard set for joint contractures integrate the perspectives of all potentially relevant user groups, from the affected individuals to clinicians and researchers. The development of this set follows the methodology to develop an International Classification of Functioning Disability and Health (ICF) Core Set and involves a formal decision-making and consensus process. Evidence from four preparatory studies will be integrated including qualitative interviews with patients, a systematic review of the literature, a survey with health professionals, and a cross sectional study with patients affected by joint contractures. The assessment instrument will be developed using item-response-theory models. The instrument will be validated. Discussion The standard set for joint contractures will provide a list of aspects of functioning and health most relevant for older individuals in geriatric care settings with joint contractures. This list will describe body functions, body structures, activities and participation and related environmental factors. This standard set will define what aspects of functioning should be assessed in individuals with joint contractures and will be the basis of the new assessment instrument to evaluate the impact of joint contractures on functioning and social participation. KW - BMC geriatrics Y1 - 2018 ER - TY - JOUR A1 - Stamm, T. A1 - Van der Giesen, F. A1 - Thorstensson, C. A1 - Steen, E. A1 - Birrell, F. A1 - Bauernfeind, B. A1 - Marshall, N. A1 - Prodinger, Birgit A1 - Machold, K. A1 - Smolen, J. A1 - Kloppenburg, M. T1 - Patient perspective of hand osteoarthritis in relation to concepts covered by instruments measuring functioning: a qualitative European multicentre study JF - Annals of the Rheumatic Diseases N2 - Objective: To explore whether the concepts important to patients with hand osteoarthritis (OA) are covered by the most commonly used instruments measuring functioning. Method: A qualitative multicentre study using a focus group technique was performed in five European countries: Austria, The Netherlands, Norway, Sweden and the United Kingdom. The qualitative data analysis followed a modified form of “meaning condensation” and used the International Classification of Functioning, Disability and Health (ICF) as a theoretical framework. Finally, the concepts from the focus groups were compared with the content of the most commonly used instruments which had been identified in an earlier theoretical analysis. Results: Fifty-six people (51 women, mean (SD) age 62.7 (7.9) years) with hand OA participated in this study in two focus groups per centre. 63 concepts were extracted from the focus groups. Twenty-one (33%) of the 63 concepts were covered by at least one instrument. Psychological consequences, different qualities of pain, aesthetic changes and leisure activities are important concepts from the focus groups which were not covered by the instruments. The qualitative analysis revealed detailed descriptions of pain-concerning sensations, levels and a certain relation to activity, none of which were fully represented in the instruments routinely used. Conclusion: It was possible to combine the concepts of the focus groups from each centre into a common qualitative analysis. The concepts important to people with hand OA are not fully represented in the most commonly used instruments. KW - Hand osteoarthritis KW - Measuring functioning KW - Qualitative multicentre study Y1 - 2009 UR - http://dx.doi.org/10.1136/ard.2008.096776 VL - 68 IS - 9 SP - 1453 EP - 1460 ER - TY - JOUR A1 - Müller, Martin A1 - Fischer, U. A1 - Bartoszek, G. A1 - Grill, E. A1 - Meyer, G. ED - Springer Nature, T1 - Impact of joint contractures on functioning and social participation in older individuals--development of a standard set (JointConFunctionSet) JF - BMC Geriatrics N2 - Background Free movement of the limbs is a prerequisite of mobility and autonomy in old age. Joint contractures, i.e. restrictions in full range of motion of any joint due to deformity, disuse or pain, are common problems of frail older people, particularly in nursing home residents. Contractures are among the most unexplored and underreported syndromes in clinical and homecare settings. Epidemiological studies indicate a wide range of prevalence of joint contractures in older individuals between 20% and 80%. This variation is due to different definitions of contracture and varying diagnostic criteria or data collection methods, different research settings, sample size and study participants? characteristics. The aetiology of joint contractures is multifaceted. In older people contractures may be caused by a variety of health conditions and situations, but immobility due to an acute injury or disease seems to be the major risk factor. Upper limb joint contractures may result in loss of ability to dress or eat independently while lower limb contractures may lead to instability and inability to walk independently and higher risk of bed confinement. Joint contractures further increase the risk of other adverse patient outcomes like pain, pressure ulcers and risk of falls. Thus, joint contractures are a major cause for excess disability in older people with a significant impact on overall quality of life and functioning. Preventive and rehabilitation interventions targeting joint contractures may decrease morbidity, increase functioning and quality of life, and, ultimately, prevent long-term disability. In the United States of America, presence of joint contractures is an established indicator of quality of care in nursing facilities. In Germany, joint contracture risk assessment and prevention have recently been defined as a quality indicator of nursing home care that should be regularly monitored by experts from the statutory health insurance system. Nursing homes are obliged to report whether they regularly assess the risk of joint contracture and administer relevant preventive measures. In clinical settings, joint contractures are assessed by measuring the range of motion. However, from a patient- and nursing-oriented perspective the relevance of a systematic registration of contractures in care-dependent older people is unclear unless their impact on functioning is understood. Contracture assessment is only an intermediate step in the evaluation of patient-relevant outcomes such as quality of life, functioning, and the ability to participate in everyday life and social participation. Arguably, a clinical definition of joint contracture is difficult because the contracture?s severity is determined by the consequences on activities of daily living, quality of life and social participation. In addition, there is no consensus on aspects most relevant to the affected individuals. A variety of functional measures is currently used for the assessment and evaluation of geriatric patients. To date, there is no consensus on common concepts for the choice of outcome measures specifically for evaluating the impact of interventions targeted on joint KW - Contractures KW - Aged KW - 80 and over KW - disabled persons KW - outcome assessment KW - geriatric rehabilitation Y1 - 2018 ER - TY - JOUR A1 - Fischer, U. A1 - Müller, Martin A1 - Strobl, R. A1 - Bartoszek, G. A1 - Meyer, G. A1 - Grill, E. ED - minerva medica, T1 - Prevalence of functioning and disability in older patients with joint contractures: a cross-sectional study JF - European Journal of physical and rehabilitation medicine KW - Contractures KW - Geriatric assessment KW - outcome assessment KW - social participation KW - cross-sectional studies Y1 - 2015 ER - TY - JOUR A1 - Fischer, U. A1 - Bartoszek, G. A1 - Müller, Martin A1 - Strobl, R. A1 - Meyer, G. A1 - Grill, E. ED - Taylor and Francis online, T1 - Patients' view on health-related aspects of functioning and disability of joint contractures: a qualitative interview study based on the International Classification of Functioning, Disability and Health JF - Disability and Rehabilitation N2 - Purpose: The aim of this study was to identify health-relevant aspects of functioning and disability of persons aged 65 years or older with joint contractures, to link the findings to corresponding ICF categories and to describe the patients’ perspective. Methods: We conducted 43 qualitative, semi-structured, face-to-face interviews with affected persons in two different locations (Witten, Munich) and in three different settings. Data were analyzed using the “meaning condensation procedure” and then linked to ICF categories. Results: From all interviews a total of 2499 single meaning-concepts were extracted which were linked to 324 different ICF categories. The participants in all settings mainly reported problems related to “Mobility of a single joint (b710)”, “Sensation of pain (b280)” and problems related to “Walking (d450)”. Almost all participants reported “Products and technology for personal indoor and outdoor mobility and transportation (e120)” as a relevant environmental factor. Conclusions: From the patients’ perspective, joint contractures have an impact on multifaceted aspects of functioning and disability, mainly body functions, environmental factors and activities and participation. The results of this study will contribute to the development of a standard instrument for measuring functioning, disability and health-relevant aspects for patients with joint contractures. Implications for Rehabilitation Joint contractures are a major cause for the development of disability in older people. Patients’ perspectives and their personal experiences have to be considered when assessing the impact of joint contractures. The International Classification of Functioning, Disability and Health (ICF) is an appropriate framework for describing the patients’ multifaceted experience of joint contractures. KW - joint contracture KW - Geriatrics KW - outcome assessment KW - qualitative research KW - social participation Y1 - 2014 ER - TY - CHAP A1 - Schanda, Ulrich A1 - Tröbs, H.-M. A1 - Völtl, R. A1 - Becker, P. T1 - Semi-empirical model of the impact force of a walking person in the time domain and generated impact sound spectra T2 - Internoise 2013 KW - Schallmesstechnik KW - Holzbau Y1 - 2018 ER - TY - JOUR A1 - Müller, Martin A1 - Bartoszek, G. A1 - Beutner, K. A1 - Klingshirn, H. A1 - Saal, S. A1 - Stephan, A.-J. A1 - Strobl, R. A1 - Grill, E. A1 - Meyer, G. ED - NCBI, T1 - Developing and piloting a multifactorial intervention to address participation and quality of life in nursing home residents with joint contractures JF - German medical science N2 - Background: Joint contractures are common problems in frail older people in nursing homes. Irrespective of the exact extent of older individuals in geriatric care settings living with joint contractures, they appear to be a relevant problem. Also, the new emphasis on the syndrome of joint contractures, e. g. by the German statutory long term care insurance, led to an increase in assessment and documentation efforts and preventive interventions in clinical care. However, more attention should be paid to the actual situation of older individuals in nursing homes with prevalent joint contractures, particularly their experience of related activity limitations and participation restrictions. Thus, the aim of this study is 1) to develop a tailored intervention to improve functioning, and especially participation and quality of life in older residents with joint contractures in nursing homes and 2) to test the feasibility of the intervention accompanied by a rigorous process evaluation. Methods: The complex intervention, which will be developed in this project follows the UK Medical Research Council (MRC) framework and integrates the perspectives of all potentially relevant user groups, from the affected individuals to clinicians and researchers. The development process will comprise a systematic literature review, reanalysis of existing data and the integration of the knowledge of the affected individuals and experts. The developed intervention including a comprehensive process evaluation will be pilot tested with residents with joint contractures in three nursing homes. Discussion: The projected study will provide a tailored intervention to improve functioning, participation and quality of life in older residents with joint contractures in nursing homes. With this focus, the intervention will support patient relevant outcomes. The pilot study including process evaluation will offer a first opportunity to indicate the size of the intervention’s effect and prepare further studies. KW - Contractures KW - Aged KW - disabled persons KW - complex interventions KW - participation Y1 - 2018 ER - TY - JOUR A1 - Hammerschmidt, Thomas A1 - Barth, J. T1 - European Reference Pricing for Vaccines in Germany: Mechanics and Effects JF - Value in Health N2 - OBJECTIVES: Previous studies have documented the impact of bacteremia involving Methicillin-resistance (MRSA) in patients with Staphylococcus aureus bacteremia, but recent estimates using nationally representative data are not available. This study compares in-hospital mortality, length of stay (LOS) and total costs between hospital discharges for MRSA and methicillin-susceptible (MSSA) S. aureus bacteremia. METHODS: Using the 2008-2009 Nationwide Inpatient Sample (NIS) data of the Healthcare Cost and Utilization Project, we developed two groups (age� 18 years): MRSA bacteremia (ICD-9-CM codes: 041.12, V09.0 and 790.7) and MSSA bacteremia (ICD-9-CM codes: 041.11 and 790.7). Given the skewed distributionofin-hospitalcostsandover-dispersionofLOS,generalizedlinearmodel(GLM) withgammaandnegativebinomialvariancefunctionswereevaluatedtocompare in-hospital costs and LOS, respectively, between groups. Logit model was used to compare in Patient mortality between groups. Gender,age,payer,11comorbidities, and hospital characteristics, including hospital location, teaching status, bed size, ownership type, and hospital region served as covariates in all regression models. RESULTS: Patients with MRSA (vs. MSSA) bacteremia were reported as a discharge diagnosis for 0.06% (vs. 0.05%) or 44,157 (vs. 37,653) of all hospital inpatient stays amongadults. MRSAbacteremiainpatientshadrelativelylongerlengthofhospital stay (12.5 vs. 11.1 days;P� 0.01), higher total costs ($22,263 vs. $21,330;P� 0.02), and increased risk of in-hospital death (2.97% vs. 2.71%;P� 0.29) than inpatients with MSSAbacteremia. After adjustment for Patient and Hospital characteristics, MRSA bacteremia incurred 10.5% (CI:7.2-14.0%;P� 0.01) longer stays, 5.6% (CI:2.0-9.4%; P� 0.01) higher inpatient costs, and 0.3% (CI:17.5-22.0%;P� 0.97) higher inpatient mortality than MSSA bacteremia. The annual adjusted mean incremental total inpatient cost associated with MRSA was $1,159 (SE: $379;P� 0.01) per patient-discharge. CONCLUSIONS:MRSAbacteremiarepresentsaconsiderableattributable burden relative to MSSA bacteremia in the US hospitals. Continued efforts towards preventing MRSA infections would provide significant potential benefits by reducing hospital resource use and costs. KW - Referenzpreis KW - Impfung Y1 - 2018 ER - TY - JOUR A1 - Saal, S. A1 - Meyer, G. A1 - Beutner, K. A1 - Klingshirn, H. A1 - Strobl, R. A1 - Grill, E. A1 - Mann, E. A1 - Köpke, S. A1 - Bleijlevens, M.H.C. A1 - Bartoszek, G. A1 - Stephan, A.-J. A1 - Hirt, J. A1 - Müller, Martin T1 - Development of a complex intervention to improve participation of nursing home residents with joint contractures: a mixed-method study JF - BMC Geriatrics N2 - Background Joint contractures in nursing home residents limit the capacity to perform daily activities and restrict social participation. The purpose of this study was to develop a complex intervention to improve participation in nursing home residents with joint contractures. Methods The development followed the UK Medical Research Council framework using a mixed-methods design with re-analysis of existing interview data using a graphic modelling approach, group discussions with nursing home residents, systematic review of intervention studies, structured 2-day workshop with experts in geriatric, nursing, and rehabilitation, and group discussion with professionals in nursing homes. Results Graphic modelling identified restrictions in the use of transportation, walking within buildings, memory functions, and using the hands and arms as the central target points for the intervention. Seven group discussions with 33 residents revealed various aspects related to functioning and disability according the International Classification of Functioning, Disability and Health domains body functions, body structures, activities and participation, environmental factors, and personal factors. The systematic review included 17 studies with 992 participants: 16 randomised controlled trials and one controlled trial. The findings could not demonstrate any evidence in favour of an intervention. The structured 2-day expert workshop resulted in a variety of potential intervention components and implementation strategies. The group discussion with the professionals in nursing homes verified the feasibility of the components and the overall concept. The resulting intervention, Participation Enabling CAre in Nursing (PECAN), will be implemented during a 1-day workshop for nurses, a mentoring approach, and supportive material. The intervention addresses nurses and other staff, residents, their informal caregivers, therapists, and general practitioners. Conclusions In view of the absence of any robust evidence, the decision to use mixed methods and to closely involve both health professionals and residents proved to be an appropriate means to develop a complex intervention to improve participation of and quality of life in nursing home residents. We will now evaluate the PECAN intervention for its impact and feasibility in a pilot study in preparation for an evaluation of its effectiveness in a definitive trial. Trial registration German clinical trials register, reference number DRKS00010037 (12 February 2016). KW - Contractures KW - Nursing homes KW - Social participation KW - Disability and health Y1 - 2018 UR - https://doi.org/10.1186/s12877-018-0745-z ER - TY - JOUR A1 - Bartoszek, G. A1 - Fischer, U. A1 - Müller, Martin A1 - Strobl, R. A1 - Grill, E. A1 - Nadolny, S. A1 - Meyer, G. ED - BioMed Central, T1 - Outcome measures in older persons with acquired joint contractures: a systematic review and content analysis using the ICF (International Classification of Functioning, Disability and Health) as a reference JF - BMC Geriatrics N2 - Background: Joint contractures are a common health problem in older persons with significant impact on activities of daily living. We aimed to retrieve outcome measures applied in studies on older persons with joint contractures and to identify and categorise the concepts contained in these outcome measures using the ICF (International Classification of Functioning, Disability and Health) as a reference. Methods: Electronic searches of Medline, EMBASE, CINAHL, Pedro and the Cochrane Library were conducted (1/2002-8/2012). We included studies in the geriatric rehabilitation and nursing home settings with participants aged ≥ 65 years and with acquired joint contractures. Two independent reviewers extracted the outcome measures and transferred them to concepts using predefined conceptual frameworks. Concepts were subsequently linked to the ICF categories. Results: From the 1057 abstracts retrieved, 60 studies met the inclusion criteria. We identified 52 single outcome measures and 24 standardised assessment instruments. A total of 1353 concepts were revealed from the outcome measures; 96.2 % could be linked to 50 ICF categories in the 2nd level; 3.8 % were not categorised. Fourteen of the 50 categories (28 %) belonged to the component Body Functions, 4 (8 %) to the component Body Structures, 26 (52 %) to the component Activities and Participation, and 6 (12 %) to the component Environmental Factors. Conclusions: The ICF is a valuable reference for identifying and quantifying the concepts of outcome measures on joint contractures in older people. The revealed ICF categories remain to be validated in populations with joint contractures in terms of clinical relevance and personal impact. KW - joint contracture KW - Aged KW - Outcome KW - Geriatric rehabilitation Y1 - 2016 ER - TY - JOUR A1 - Bartoszek, Gabriele A1 - Fischer, Uli A1 - Clarmann von Clarenau, Stephan A1 - Grill, Eva A1 - Mau, Wilfried A1 - Meyer, Gabriele A1 - Strobl, Ralf A1 - Thiesemann, Rüdiger A1 - Nadolny, Stephan A1 - Müller, Martin ED - Science direct, T1 - Development of an International Classification of Functioning, Disability and Health (ICF)-based standard set to describe the impact of joint contractures on participation of older individuals in geriatric care settings JF - Archives of gerontology and geriatrics N2 - Introduction Joint contractures are characterized as impairment of the physiological movement of joints due to deformity, disuse or pain and have major impact especially for older individuals in geriatric care. Some measures for the assessment of the impact of joint contractures exist. However, there is no consensus on which aspects should constantly be measured. Our objective was to develop a standard-set based on the ICF for describing functioning and disability in older individuals with joint contractures in geriatric care settings, giving special emphasis to activities and participation. Methods The ICF-based standard set was developed in a formal decision-making and consensus process and based on an adapted version of the protocol to develop ICF Core Sets. These are sets of categories from the ICF, serving as standards for the assessment, communication and reporting of functioning and health for clinical studies, clinical encounters and multi-professional comprehensive assessment and management. Results Twenty-three experts from Germany and Switzerland selected 105 categories of the ICF component Activities and Participation for the ICF-based standard set. The largest number of categories was selected from the chapter Mobility (50 categories, 47.6%). Conclusions The standard set for older individuals with joint contractures provides health professionals with a standard for describing patients’ activity limitations and participation restrictions. The standard set also provides a common basis for the development of patient-centered measures and intervention programs. The preliminary version of the ICF-based standard set will be tested in subsequent studies with regard to its psychometric properties. KW - joint contracture KW - older people KW - activities of daily living KW - social participation Y1 - 2015 VL - 61 ER - TY - JOUR A1 - Prodinger, Birgit A1 - Ballert, C.S. A1 - Brinkof, M. W. G. A1 - Tennant, A. A1 - Post, M. W. M. T1 - Metric properties of the Spinal Cord Independence Measure - Self Report in a community survey JF - Journal of Rehabilitation Medicine N2 - Objective: The Spinal Cord Independence Measure – Self Report (SCIM-SR) is a self-report instrument for assessing functional independence of persons with spinal cord injury. This study examined the internal construct validity and reliability of the SCIM-SR, when administered in a community survey, using the Rasch measurement model. Methods: Rasch analysis of data from 1,549 individuals with spinal cord injury who completed the SCIM-SR. Results: In the initial analysis no fit to the Rasch model was achieved. Items were grouped into testlets to accommodate the substantial local dependency. Due to the differential item functioning for lesion level and degree, spinal cord injury-specific sub-group analyses were conducted. Fit to the Rasch model was then achieved for individuals with tetraplegia and complete paraplegia, but not for those with incomplete paraplegia. Comparability of ability estimates across sub-groups was attained by anchoring all sub-groups on a testlet. Conclusion: The SCIM-SR violates certain assumptions of the Rasch measurement model, as shown by the local dependency and differential item functioning. However, an intermediate solution to achieve fit in 3 out of 4 spinal cord injury sub-groups was found. For the time being, therefore, it advisable to use this approach to compute Rasch-transformed SCIM-SR scores. KW - Functional status KW - Independence KW - Psychometrics KW - Reliability KW - Spinal cord injury Y1 - 2016 UR - https://doi.org/10.2340/16501977-2059 VL - 48 IS - 2 SP - 149 EP - 164 ER - TY - JOUR A1 - Prodinger, Birgit A1 - Ballert, C. S. A1 - Brach, M. A1 - Brinkhof, M. W. G. A1 - Cieza, A. A1 - Hug, K. A1 - Jordan, X. A1 - Post, M. W. M. A1 - Scheel-Sailer, A. A1 - Schubert, M. A1 - Tennant, A. A1 - Stucki, G. T1 - Toward standardized reporting for a cohort study on functioning: The Swiss Spinal Cord Injury Cohort Study JF - Journal of Rehabilitation Medicine N2 - Objective: Functioning is an important outcome to measure in cohort studies. Clear and operational outcomes are needed to judge the quality of a cohort study. This paper outlines guiding principles for reporting functioning in cohort studies and addresses some outstanding issues. Design: Principles of how to standardize reporting of data from a cohort study on functioning, by deriving scores that are most useful for further statistical analysis and reporting, are outlined. The Swiss Spinal Cord Injury Cohort Study Community Survey serves as a case in point to provide a practical application of these principles. Methods and Results: Development of reporting scores must be conceptually coherent and metrically sound. The International Classification of Functioning, Disability and Health (ICF) can serve as the frame of reference for this, with its categories serving as reference units for reporting. To derive a score for further statistical analysis and reporting, items measuring a single latent trait must be invariant across groups. The Rasch measurement model is well suited to test these assumptions. Conclusion: Our approach is a valuable guide for researchers and clinicians, as it fosters comparability of data, strengthens the comprehensiveness of scope, and provides invariant, interval-scaled data for further statistical analyses of functioning. KW - Comparability KW - Epidemiology KW - Health information systems KW - Informed decision-making KW - Rasch analysis Y1 - 2016 UR - https://doi.org/10.2340/16501977-2026 VL - 48 IS - 2 SP - 189 EP - 196 ER - TY - JOUR A1 - Prodinger, Birgit A1 - Darzins, S. A1 - Magasi, S. A1 - Baptiste, S. T1 - The International Classification of Functioning, Disability and Health (ICF): Opportunities and Challenges to the Use of the ICF for Occupational Therapy JF - World Federation of Occupational Therapists Bulletin N2 - The occupational therapy community has been receptive to the World Health Organisation's International Classification of Functioning, Disability and Health (ICF) published in 2001. Building upon results of a survey (2008–2009) and subsequent workshop (2010) conducted by the World Federation of Occupational Therapists on the use and utility of the ICF for occupational therapists, this paper addresses some of the opportunities and challenges to strengthening the use of the ICF in occupational therapy practice. Attaining further clarity on the relationship of occupational therapy concepts and the ICF and developing crosswalk tables to exemplify linkages between occupational therapy terminology and the ICF will strengthen utility of the ICF for occupational therapy. Enhanced clarity about the concepts within occupational therapy that correspond to the ICF will ultimately assist other professions and disciplines in their understanding about occupational therapy and occupational therapists’ roles in health and related systems. KW - ICF KW - Occupational therapy KW - Standardization KW - Health care terminology KW - Rehabilitation Y1 - 2015 UR - https://doi.org/10.1179/2056607715Y.0000000003 VL - 71 IS - 2 SP - 108 EP - 114 ER - TY - JOUR A1 - Shaw, L. A1 - Jacobs, K. A1 - Rudmann, D. A1 - Magalhaes, L. A1 - Huot, S. A1 - Prodinger, Birgit A1 - Mandich, A. A1 - Hocking, C. A1 - Akande, V. A1 - Backmann, C. A1 - Bossers, A. A1 - Bragg, M. A1 - Bryson, M. A1 - Cowls, J. A1 - Stone, S. D. A1 - Dawe, E. A1 - Dennhardt, S. A1 - Dennis, D. A1 - Foster, J. A1 - Friesen, M. A1 - Galheigo, S. A1 - Gichuri, J. A1 - Hughes, I. A1 - Isaac, A. A1 - Jarus, T. A1 - Kinsella, A. A1 - Klinger, L. A1 - Leyshon, R. A1 - Lysaght, R. A1 - McKay, E. A1 - Orchard, T. A1 - Phelan, S. A1 - Ravenek, M. A1 - Gruhl, K. R. A1 - Robb, L. A1 - Stadnyk, R. A1 - Sumsion, T. A1 - Suto, M. T1 - Directions for advancing the study of work transitions in the 21st century JF - Work N2 - Objectives: The purpose of this article is to share the details, outcomes and deliverables from an international workshop on work transitions in London, Ontario, Canada. Participants: Researchers, graduate students, and community group members met to identity ways to advance the knowledge base of strategies to enhance work participation for those in the most disadvantaged groups within society. Methods: A participatory approach was used in this workshop with presentations by researchers and graduate students. This approach included dialogue and discussion with community members. In addition, small group dialogue and debate, world cafe discussions, written summaries of group discussion and reflection boards were used to bring new ideas to the discussion and to build upon what we know. Findings: Two research imperatives and six research recommendations were identified to advance global dialogue on work transitions and to advance the knowledge base. Occupational justice can be used to support future research directions in the study of work transitions. Conclusions: Moving forward requires a commitment of community of researchers, clinicians and stakeholders to address work disparities and implement solutions to promote participation in work. KW - Work disparities KW - occupational justice KW - Occupational transitions Y1 - 2012 UR - https://doi.org/10.3233/WOR-2012-1438 VL - 41 IS - 4 SP - 369 EP - 377 ER - TY - CHAP A1 - Seifert, T. A1 - Beneken, Gerd A1 - Baehr, N. T1 - Engineering Long-Lived Applications Using MDA T2 - Intl. Conference on Software Engineering and Applications, pp. 241-246, Cambridge N2 - Creating long-lived software systems requires a technol ogy to build systems with good maintainability. One of the core ideas of the Model Driven Architecture (MDA) is to ease the change of the run-time platform by raising the level of abstraction in which just the business aspects are modelled, and by separating business aspects from techni cal issues and implementation details. This article anal yses the MDA approach with respect to maintainability. We argue that MDA systems will become even harder to maintain because the maintainability depends on the sys tem's (development) environment. MDA, UML and other base technologies are still under development, therefore the tools will change considerably. While the MDA possibly eases the change of the run-time platform, we show that it is quite difficult to exchange a link in the development tool chain. Our argumentation is based on the general proper ties of software evolution and the dependency chains in the development and run-time environments. It is backed by experiences with MDA development as well as by analo gies to general maintenance experiences. KW - Software Development KW - Software Maintenence KW - Model-Driven Architecture Y1 - 2004 ER - TY - JOUR A1 - Prodinger, Birgit A1 - Ballert, C. S. A1 - Cieza, A. T1 - Setting up a cohort study of functioning: From classification to measurement JF - Journal of Rehabilitation Medicine N2 - Objective: Cohort studies are an appropriate method for the collection of population-based longitudinal data to track people's health and functioning over time. However, describing and understanding functioning in its complexity with all its determinants is one of the biggest challenges faced by clinicians and researchers. Design: This paper focuses on the development of a cohort study on functioning, outlining the relevant steps and related methods, and illustrating these with reference to the Swiss Spinal Cord Injury Cohort Study (SwiSCI). Methods and results: In setting up a cohort study the initial step is to specify which variables are to be included, i.e. what to assess. The International Classification of Functioning, Disability and Health (ICF) is valuable in this process. The second step is to identify how to assess the specified ICF categories. Existing instruments and assessments can then be linked to the ICF. Conclusion: The methods outlined here enable the development of a cohort study to be based on a comprehensive perspective of health, operationalized through functioning as conceptualized and classified in the ICF, yet to remain efficient and feasible to administer. KW - Disability and health KW - Cohort study KW - Epidemiology KW - International classification of functioning KW - Standardized Reporting Y1 - 2016 UR - https://doi.org/10.2340/16501977-2030 VL - 48 IS - 2 SP - 131 EP - 140 ER - TY - JOUR A1 - Ballert, C.S. A1 - Hopfe, M. A1 - Kus, M. A1 - Mader, L. A1 - Prodinger, Birgit T1 - Using the refined ICF Linking Rules to compare the content of existing instruments and assessments: a systematic review and exemplary analysis of instruments measuring participation. JF - Disability and Rehabilitation N2 - Background: Existing instruments measuring participation may vary with respect to various aspects. This study aimed to examine the comparability of existing instruments measuring participation based on the International Classification of Functioning, Disability and Health (ICF) by considering aspects of content, the perspective adopted and the categorization of response options. Methods: A systematic literature review was conducted to identify instruments that have been commonly used to measure participation. Concepts of identified instruments were then linked to the ICF following the refined ICF Linking Rules. Aspects of content, perspective adopted and categorization of response options were documented. Results: Out of 315 instruments identified in the full-text screening, 41 instruments were included. Concepts of six instruments were linked entirely to the ICF component Activities and Participation; of 10 instruments still 80% of their concepts. A descriptive perspective was adopted in most items across instruments (75%), mostly in combination with an intensity rating. An appraisal perspective was found in 18% and questions from a need or dependency perspective were least frequent (7%). Conclusion: Accounting for aspects of content, perspective and categorization of responses in the linking of instruments to the ICF provides detailed information for the comparison of instruments and guidance on narrowing down the choices of suitable instruments from a content point of view. Implications for Rehabilitation For clinicians and researchers who need to identify a specific instrument for a given purpose, the findings of this review can serve as a screening tool for instruments measuring participation in terms of the following: • Their content covered based on the ICF. • The perspective adopted in the instrument (e.g., descriptive, need/dependency or appraisal). • The categorization of their response options (e.g., intensity or frequency). KW - Comparability KW - International Classification of Functioning KW - Disability and health KW - Outcome measures Y1 - 2019 UR - https://doi.org/10.1080/09638288.2016.1198433 VL - 41 IS - 5 SP - 584 EP - 600 ER - TY - JOUR A1 - Hammerschmidt, Thomas A1 - Banz, K. A1 - Wagenpfeil, S. A1 - Neiss, A. A1 - Wutzler, P. T1 - Economic Evaluation of Varicella Vaccination Programmes: A Review of the Literature JF - Pharmaco Economics N2 - Chickenpox infections are generally mild but due to their very high incidence among healthy children they give rise to considerable morbidity and occasional mortality. With the development of a varicella vaccine in the early 1970s and its progressive licensing in many countries, interest in the efficiency of varicella immunisation programmes grew. The objective of this review was to discuss the methodological aspects and results of published economic evaluations of varicella vaccination. From this, we attempted to make recommendations. A computerised search was carried out; 17 full economic evaluations of varicella vaccination were retrieved. The review identified the methodological divergences and similarities between the articles in four areas: study design, epidemiological data, economic data and model characteristics. We assessed to what extent the applied methods conform to general guidelines for the economic evaluation of healthcare interventions and compared the studies’ results. The desirability of a universal vaccination programme depends on whose perspective is taken. Despite variability in data and model assumptions, the studies suggest that universal vaccination of infants is attractive to society because large savings occur from averted unproductive days for parents. For the healthcare payer, universal vaccination of infants does not generate savings. Vaccination of susceptible adolescents has been proposed by some authors as a viable alternative; the attractiveness of this is highly dependent on the negative predictive value of anamnestic screening. Targeted vaccination of healthcare workers and immunocompromised individuals appears relatively cost effective. Findings for other target groups are either contradictory or provide insufficient evidence for any unequivocal recommendations to be made. High sensitivity to vaccine price was reported in most studies. This review highlights that some aspects of these studies need to be further improved before final recommendations can be made. First, more transparency, completeness and compliance to general methodological guidelines are required. Second, because of the increasing severity of varicella with age, it is preferable and in some cases essential to use dynamic models for the assessment of universal vaccination strategies. Third, most studies focused on the strategy of vaccinating children only while their results depended heavily on disputable assumptions (regarding vaccine effectiveness and impact on herpes zoster). Since violation of these assumptions could have important adverse public health effects, we suggest pre-adolescent vaccination as a more secure alternative. This option deserves more attention in future analyses. KW - Herpes Zoster KW - Healthcare Worker KW - Varicella Zoster Virus KW - Chickenpox KW - Healthcare Payer Y1 - 2018 ER - TY - JOUR A1 - Müller, Martin A1 - Peters, A. A1 - Doring, A. A1 - Ladwig, K.-H. A1 - Holle, R. A1 - Meisinger, C. A1 - Linkohr, B. A1 - Autenrieth, C. A1 - Baumeister, S. A1 - Behr, J. A1 - Bergner, A. A1 - Bickel, H. A1 - Bidlingmaier, M. A1 - Dias, A. A1 - Emeny, R.T. A1 - Fischer, B. A1 - Grill, E. A1 - Gorzelniak, L. A1 - Hansch, H. A1 - Heidbreder, S. A1 - Heier, M. A1 - Horsch, A. A1 - Huber, D. A1 - Huber, R.M. A1 - Jorres, R.A. A1 - Kaab, S. A1 - Karrasch, A1 - Kirchberger, A1 - Klug, A1 - Kranz, A1 - Kruch, A1 - Lacruz, A1 - Lang, A1 - Mielk, A1 - Nowak, A1 - Schneider, A1 - Schulz, A1 - Seidel, A1 - Strobl, A1 - Thorand, A1 - Wende, A1 - Weidenhammer, A1 - Zimmermann, A1 - Wichmann, ED - Springer Nature, T1 - Multimorbidity and successful aging: the population-based KORA-Age study JF - Zeitschrift für Gerontologie und Geriatrie N2 - Background Multimorbidity in the older population is well acknowledged to negatively affect health-related quality of life (HRQL). Several studies have examined the independent effects of single diseases; however, little research has focused on interaction between diseases. The purpose of this study was to assess the impact of six self-reported major conditions and their combinations on HRQL measured by the EQ-5D. Methods The EQ-5D was administered in the population-based KORA-Age study of 4,565 Germans aged 65 years or older. A generalised additive regression model was used to assess the effects of chronic conditions on HRQL and to account for the nonlinear associations with age and body mass index (BMI). Disease interactions were identified by a forward variable selection method. Results The conditions with the greatest negative impact on the EQ-5D index were the history of a stroke (regression coefficient -11.3, p < 0.0001) and chronic bronchitis (regression coefficient -8.1, p < 0.0001). Patients with both diabetes and coronary disorders showed more impaired HRQL than could be expected from their separate effects (coefficient of interaction term -8.1, p < 0.0001). A synergistic effect on HRQL was also found for the combination of coronary disorders and stroke. The effect of BMI on the mean EQ-5D index was inverse U-shaped with a maximum at around 24.8 kg/m2. Conclusions There are important interactions between coronary problems, diabetes mellitus, and the history of a stroke that negatively affect HRQL in the older German population. Not only high but also low BMI is associated with impairments in health status. KW - Body Mass Index KW - Chronic Condition KW - Questionnaire Respondent KW - Disease Interaction KW - Coronary Problem Y1 - 2018 ER - TY - GEN A1 - Auer, Veronika A1 - Husmann, Kai ED - Auer, Veronika T1 - Perspectives of a future-proof logistics applied to the natural raw material supply in the Cluster Region (Plan C). Postersession. KW - Bioökonomie KW - Cluster Region KW - raw material supply Y1 - 2015 ER - TY - JOUR A1 - Strobl, R. A1 - Müller, Martin A1 - Thorand, B. A1 - Linkohr, B. A1 - Autenrieth, C. S. A1 - Peters, A. A1 - Grill, E. ED - Elsevier, T1 - Men benefit more from midlife leisure-time physical activity than women regarding the development of late-life disability--results of the KORA-Age study JF - science direct N2 - Objective Encouraging physical activity is an important public health measure to reduce disability prevalence in the aged. The aims of this study were to determine the association between midlife physical activity and late-life disability and to investigate gender-specific differences. Method This data originates from the KORA-Age cohort, a follow-up in 2008 of the MONICA (Multinational Monitoring of Trends and Determinants in Cardiovascular Diseases)/KORA (Cooperative Health Research in the Region of Augsburg) S1–S4 surveys (1984–2001) situated in Augsburg, a city in Southern Germany. We applied a multivariable hurdle model to investigate the association of physical activity and disability. Results We analysed 3333 persons with a mean follow-up of 18 ± 5.5 years. Using hurdle models, moderate activity and high activity had a protective effect on the occurrence of disability (OR (odds ratio) = 0.80 and 0.73), but not on severity (i.e. number of limitations). We observed a strong gender-specific difference in this association, with men benefitting more from exercise. Conclusion Elevated physical activity reduces the risk of becoming disabled and postpones the onset of disability by several years, but we could not show an effect on the severity of disability. In addition, men seem to benefit more from leisure-time physical activity than women KW - Aged KW - Aged 80 and over KW - physical activity KW - Disability evaluation Y1 - 2014 ER - TY - JOUR A1 - Peters, A. A1 - Doring, A. A1 - Ladwig, K.-H. A1 - Meisinger, C. A1 - Linkohr, B. A1 - Autenrieth, C. A1 - Baumeister, S.E. A1 - Behr, J. A1 - Bergner, A. A1 - Bickel, H. A1 - Bidlingmaier, M. A1 - Dias, A. A1 - Emeny, R.T. A1 - Fischer, B. A1 - Grill, E. A1 - Gorzelniak, L. A1 - Hansch, H. A1 - Heidbreder, S. A1 - Heier, M. A1 - Horsch, A. A1 - Huber, D. A1 - R. M., Huber A1 - Jorres, R.A. A1 - Kaab, S. A1 - Karrasch, S. A1 - Kirchberger, I. A1 - Klug, G. A1 - Kranz, B. A1 - Kuch, B. A1 - Lacruz, M.E. A1 - Lang, O. A1 - Mielck, A. A1 - Nowak, D. A1 - Perz, S. A1 - Schneider, A. A1 - Schulz, H. A1 - Müller, Martin A1 - Seidl, H. A1 - Strobl, R. A1 - Thorand, B. A1 - Wende, R. A1 - Weidenhammer, W. A1 - Zimmermann, A.-K. A1 - Wichmann, H.-E. A1 - Holle, R. ED - BioMed Central, T1 - Multimorbidity and successful aging: the population-based KORA-Age study JF - Health and quality of life outcomes N2 - Background Multimorbidity in the older population is well acknowledged to negatively affect health-related quality of life (HRQL). Several studies have examined the independent effects of single diseases; however, little research has focused on interaction between diseases. The purpose of this study was to assess the impact of six self-reported major conditions and their combinations on HRQL measured by the EQ-5D. Methods The EQ-5D was administered in the population-based KORA-Age study of 4,565 Germans aged 65 years or older. A generalised additive regression model was used to assess the effects of chronic conditions on HRQL and to account for the nonlinear associations with age and body mass index (BMI). Disease interactions were identified by a forward variable selection method. Results The conditions with the greatest negative impact on the EQ-5D index were the history of a stroke (regression coefficient -11.3, p < 0.0001) and chronic bronchitis (regression coefficient -8.1, p < 0.0001). Patients with both diabetes and coronary disorders showed more impaired HRQL than could be expected from their separate effects (coefficient of interaction term -8.1, p < 0.0001). A synergistic effect on HRQL was also found for the combination of coronary disorders and stroke. The effect of BMI on the mean EQ-5D index was inverse U-shaped with a maximum at around 24.8 kg/m2. Conclusions There are important interactions between coronary problems, diabetes mellitus, and the history of a stroke that negatively affect HRQL in the older German population. Not only high but also low BMI is associated with impairments in health status. KW - Aging KW - Multimorbidity KW - KORA Study Y1 - 2011 ER - TY - JOUR A1 - Bauernfeind, B. A1 - Aringer, M. A1 - Prodinger, Birgit A1 - Kirchberger, I. A1 - Machold, K. A1 - Smolen, J. A1 - Stamm, T. T1 - Identification of relevant concepts of functioning in daily life in people with systematic Lupus Erythematosus: A patient Delphi exercise JF - Arthritis Care & Research N2 - Objective To identify the most important and relevant concepts of daily functioning from the perspective of patients with systemic lupus erythematosus (SLE). Methods We conducted a consensus‐building, 3‐round, electronic mail survey with SLE patients using the Delphi technique. The Delphi technique is a structured communication process with 4 key characteristics: anonymity, iteration with controlled feedback, statistical group response, and informed input. The concepts contained in the answers of the patients were extracted and linked to the International Classification of Functioning, Disability and Health (ICF). Results Of the total 225 participants, 194 (86.2%) completed the questionnaires from all 3 Delphi rounds. In total, after the third Delphi round, 307 concepts were identified. Ninety concepts (55 in the domain body functions and structures, 16 in activities and participation, and 19 in environmental factors) were considered relevant by at least 50% of the participants in the third round and linked to the ICF. Twelve concepts were considered important by at least 75% of the participants. Conclusion The high number of concepts resulting from this large‐scale patient Delphi approach underlines the great variety of SLE patients' problems in daily functioning. The results of this patient Delphi project supplement the findings of our focus‐group study in establishing a comprehensive overview of the patient perspective in SLE. KW - Systemic lupus erythematosus KW - Patient Delphi exercise KW - Functioning in daily life Y1 - 2009 UR - https://doi.org/10.1002/art.24165 VL - 61 IS - 1 SP - 21 EP - 28 ER - TY - JOUR A1 - Prodinger, Birgit A1 - Ndosi, M. A1 - Nordenskiöld, U. A1 - Stamm, T. A1 - Persson, G. A1 - Andreasson, I. A1 - Lundgren-Nilsson, A. T1 - Rehabilitation provided to patients with rheumatoid arthritis: A comparison of three different Rheumatology clinics in Austria, Sweden and the UK from the perspectives of patients and health professionals JF - Journal of Rehabilitation Medicine N2 - Objective: To explore patients’ and health professionals’ views of outpatient rehabilitation services for patients with rheumatoid arthritis in 3 different rheumatology sites across Europe. Methods: A qualitative multi-method study was conducted with patients and health professionals in Vienna (Austria), Gothenburg (Sweden) and Leeds (UK). Data collection was carried out during focus groups with patients and health professionals. Patients’ hospital records were integrated into the analysis. Data were analysed for site and findings were compared across sites. Results: A total of 20 patients and 20 health professionals participated in 12 focus groups. Although the 3 sites were all publicly funded university clinics, there were differences between sites regarding the structure and content of rehabilitation services. The themes that emerged in the focus groups were: referrals; continuity in rehabilitation; information provided to patients; patients’ organizations; documentation and communication amongst health professionals; interface between primary and specialist care; and prescription practices. Most themes were addressed at all 3 sites, but there were variations in the specifics within themes. Conclusion: Integration of patients’ and health professionals’ views on how rehabilitation services are coordinated and how (parts of) processes are set up elsewhere provide valuable information for the further optimization of rehabilitation services. KW - Delivery of Healthcare KW - Interdisciplinary Communication KW - Multi-centre study KW - Patient perspective KW - Rehabilitation Y1 - 2015 UR - https://doi.org/10.2340/16501977-1914 VL - 47 IS - 2 SP - 174 EP - 182 ER - TY - JOUR A1 - Castrejon, I. A1 - Carmona, L. A1 - Agrinier, N. A1 - Andres, M. A1 - Briot, K. A1 - Caron, M. A1 - Christensen, R. A1 - Consolaro, A. A1 - Curbelo, R. A1 - Ferrer, M. A1 - Foltz, V. A1 - Gonzalez, C. A1 - Guillemin, F. A1 - Machado, P. A1 - Prodinger, Birgit A1 - Ravellil, A. A1 - Scholte-Voshaar, M. A1 - Uhlig, T. A1 - van Tuyl, L. A1 - Zink, A. A1 - Gossec, L. T1 - The EULAR Outcome Measures Library: development and an example from a systematic review for systemic lupus erythematous instruments JF - Clinical and Experimental Rheumatology N2 - Objective: Patient reported outcomes (PROs) are relevant in rheumatology. Variable accessibility and validity of commonly used PROs are obstacles to homogeneity in evidence synthesis. The objective of this project was to provide a comprehensive library of “validated PROs”. Methods: A launch meeting with rheumatologists, PROs methodological experts, and patients, was held to define the library’s aims and scope, and basic requirements. To feed the library we performed systematic reviews on selected diseases and domains. Relevant information on PROs was collected using standardised data collection forms based on the COSMIN checklist. Results: The EULAR Outcomes Measures Library (OML), whose aims are to provide and to advise on PROs on a user-friendly manner albeit based on scientific grounds, has been launched and made accessible to all. PROs currently included cover any domain and, are generic or specifically target to the following diseases: rheumatoid arthritis, osteoarthritis, spondyloarthritis, low back pain, systemic lupus erythematosus, gout, osteoporosis, juvenile idiopathic arthritis, and fibromyalgia. Up to 236 instruments (106 generic and 130 specific) have been identified, evaluated, and included. The systematic review for SLE, which yielded 10 specific instruments, is presented here as an example. The OML website includes, for each PRO, information on the construct being measured and the extent of validation, recommendations for use, and available versions; it also contains a glossary on common validation terms. Conclusion: The OML is an in progress library led by rheumatologists, related professionals and patients, that will help to better understand and apply PROs in rheumatic and musculoskeletal diseases. KW - Rheuma KW - Lupus erythematous KW - Outcome measures KW - Systematic Review Y1 - 2015 VL - 33 IS - 6 SP - 910 EP - 916 ER - TY - JOUR A1 - Maritz, R. A1 - Aronsky, D. A1 - Prodinger, Birgit T1 - The Implementation of the International Classification of Functioning, Disability and Health (ICF) in Electronic Health Records - A Systematic Review JF - Applied Clinical Informatics N2 - Background: The International Classification of Functioning, Disability and Health (ICF) is the World Health Organization’s standard for describing health and health-related states. Examples of how the ICF has been used in Electronic Health Records (EHRs) have not been systematically summarized and described yet. Objectives: To provide a systematic review of peer-reviewed literature about the ICF’s use in EHRs, including related challenges and benefits. Methods: Peer-reviewed literature, published between January 2001 and July 2015 was retrieved from Medline®, CINAHL®, Scopus®, and ProQuest® Social Sciences using search terms related to ICF and EHR concepts. Publications were categorized according to three groups: Requirement specification, development and implementation. Information extraction was conducted according to a qualitative content analysis method, deductively informed by the evaluation framework for Health Information Systems: Human, Organization and Technology-fit (HOT-fit). Results: Of 325 retrieved articles, 17 publications were included; 4 were categorized as requirement specification, 7 as development, and 6 as implementation publications. Information regarding the HOT-fit evaluation framework was summarized. Main benefits of using the ICF in EHRs were its unique comprehensive perspective on health and its interdisciplinary focus. Main challenges included the fact that the ICF is not structured as a formal terminology as well as the need for a reduced number of ICF codes for more feasible and practical use. Conclusion: Different approaches and technical solutions exist for integrating the ICF in EHRs, such as combining the ICF with other existing standards for EHR or selecting ICF codes with natural language processing. Though the use of the ICF in EHRs is beneficial as this review revealed, the ICF could profit from further improvements such as formalizing the knowledge representation in the ICF to support and enhance interoperability. KW - International Classification of Functioning KW - Disability and health KW - Electronic health records KW - Reference standards KW - Medical Informatics Y1 - 2017 UR - https://doi.org/10.4338/ACI2017050078 VL - 8 IS - 3 SP - 964 EP - 980 ER - TY - CHAP A1 - Antretter, F. A1 - Mayer, C. A1 - Wellisch, Ulrich T1 - An approach for a statistical model for the user behaviour regarding window ventilation in residential buildings T2 - Proceedings of Building Simulation 2011: 12th Conference of International Building Performance Simulation Association, Sydney KW - Window Ventilation KW - Residential Buildings KW - Building Simulation Y1 - 2011 ER - TY - JOUR A1 - Grill, E. A1 - Furman, J.M. A1 - Alghwiri, A.A. A1 - Müller, Martin A1 - Whitney, S.L. ED - Bárány Society, T1 - Using core sets of the international classification of functioning, disability and health (ICF) to measure disability in vestibular disorders: study protocol JF - Journal of vestibular research N2 - Symptom frequency and severity in vestibular disorders often do not correlate well with patients' restrictions of activities of daily living and limitations of participation. Due to the lack of appropriate patient reported outcome measures (PRO), the extent of limitations and restrictions is mostly unknown. The International Classification of Functioning, Disability and Health (ICF) is a conceptual framework and classification to evaluate all aspects of health and disability. An ICF-based measure, the Vestibular and Participation Measure (VAP), was recently proposed. Also, an ICF Core Set for vertigo, dizziness and balance disorders was developed to describe what aspects of functioning should be measured. This study protocol describes the development and cross-cultural validation of a new measure, the VAP-extended (VAP-e), based on VAP and ICF Core Set on three continents. To determine objectivity and cross-cultural validity of the VAP and to find potentially redundant items, Rasch models will be used. The VAP-e will be created by modifying or adding items from the Activities and Participation and Environmental Factors component of the ICF Core Set. Reliability, objectivity and responsiveness of the VAP-e will be tested. KW - Vertigo KW - Dizziness KW - Quality of life KW - Activities of daily living Y1 - 2013 IS - 23(6) ER - TY - JOUR A1 - Müller, Martin A1 - Whitney, S. L. A1 - Alghwiri, A. A1 - Alshebber, K. A1 - Strobl, R. A1 - Aghadir, A. A1 - Almomani, M. O. A1 - Furman, J. M. A1 - Grill, E. ED - PlumX Metrics, T1 - Subscales of the vestibular activities and participation questionnaire could be applied across cultures JF - European journal of epidemiology N2 - Objectives The objective of this study was to assess the objectivity, cross-cultural validity, and convergent validity of the Vestibular Activities and Participation (VAP) questionnaire among four countries, Germany, United States, Jordan, and Saudi Arabia. Study Design and Setting This was a cross-sectional study conducted in four specialized outpatient dizziness clinics in Germany, United States, Jordan, and Saudi Arabia. Results A total of 453 participants were included in the study. The Rasch analysis revealed two separate subscales. Subscale 1 items included focusing attention, lying down, standing, bending, lifting and carrying objects, and sports. Subscale 2 items included walking long distances, climbing, running, moving around within buildings other than home, using transportation, and driving. The Pearson product–moment correlation between the Dizziness Handicap Inventory and the summary score of the VAP subscale 1 was 0.66 and was 0.64 for subscale 2. Conclusion Owing to its shortness and intercultural adaptability, the new two-scale version of the VAP questionnaire lends itself to clinical practice and research across countries to estimate the effect of vertigo and dizziness on activity limitation and participation restrictions. Psychometrically sound summary scores can be calculated. More extended versions of the VAP can be used for comprehensive clinical assessment where summary scores are not needed or a more detailed documentation is warranted. KW - Dizziness KW - Vertigo KW - Quality of life KW - Activities of daily living KW - social participation Y1 - 2018 ER - TY - JOUR A1 - Müller, Martin A1 - Grill, E. A1 - Furman, J.M. A1 - Alghwiri, A.A. A1 - Whitney, S.L. ED - IOS Press content Library, T1 - Using core sets of the international classification of functioning, disability and health (ICF) to measure disability in vestibular disorders: study protocol JF - Barany Society June 10, 2012 Symposium on Measures for Level of Functioning and Quality of Life in People with Vestibular Disorders N2 - Symptom frequency and severity in vestibular disorders often do not correlate well with patients' restrictions of activities of daily living and limitations of participation. Due to the lack of appropriate patient reported outcome measures (PRO), the extent of limitations and restrictions is mostly unknown. The International Classification of Functioning, Disability and Health (ICF) is a conceptual framework and classification to evaluate all aspects of health and disability. An ICF-based measure, the Vestibular and Participation Measure (VAP), was recently proposed. Also, an ICF Core Set for vertigo, dizziness and balance disorders was developed to describe what aspects of functioning should be measured. This study protocol describes the development and cross-cultural validation of a new measure, the VAP-extended (VAP-e), based on VAP and ICF Core Set on three continents. To determine objectivity and cross-cultural validity of the VAP and to find potentially redundant items, Rasch models will be used. The VAP-e will be created by modifying or adding items from the Activities and Participation and Environmental Factors component of the ICF Core Set. Reliability, objectivity and responsiveness of the VAP-e will be tested. KW - Dizziness KW - Vertigo KW - Quality of life Y1 - 2012 ER - TY - CHAP A1 - Rieder, Rosina A1 - Krommes, Sandra A1 - Lang, Werner ED - Brotas, Luisa ED - Roaf, Susan ED - Nicol, Fergus T1 - Criticality assessment of indium for thin-film photovoltaics in the context of sustainability goals for the German housing sector T2 - PROCEEDINGS of 33rd PLEA International Conference N2 - In countries with large import dependencies, several studies on strategically important metals have classified raw materials as being critical by combining supply and vulnerability risks. In case of availability, the most critical raw materials are metallic ores and industrial minerals. Within the scope of developing resource efficient buildings, innovative building technologies, such as renewable energy systems, are becoming increasingly integral parts of buildings. Since critical raw materials are essential components in building technologies, they will also play an important role in the housing sector. In this context, it is crucial to consider how sustainability goals in the housing sector are affected by raw material criticality. This paper addresses supply and vulnerability risks of indium, which is contained in thin-film photovoltaics, in order to identify their impacts on future developments in the housing sector. Raw material availability is significantly influenced by the demand and supply of raw materials. To implement risk factors for a criticality assessment in sector-specific material flows, their impacts are analysed and modelled using a dynamic, macro-economic approach. Assuming different energy scenarios in the German housing sector up to 2050, the model reveals the raw material criticality by pointing out supply risks in order to derive recommendations. KW - criticality, raw materials, thin-film photovoltaics, indium, system dynamics Y1 - 2017 SN - 978-0-9928957-5-4 SP - 3692 EP - 3698 PB - NCEUB CY - Edinburgh ER - TY - JOUR A1 - Krommes, Sandra A1 - Schmidt, Felix ED - Calabrese, Giuseppe Giulio T1 - Business model analysis of electric mobility products and services JF - International Journal of Automotive Technology and Management IJATM N2 - The automotive value chain is experiencing significant transformation. Due to changed mobility use patterns and external conditions such as climate change, scarcity of resources and local air pollution, car manufacturers offer connectivity services and are forced to launch electric mobility. Most of the electric vehicles have additional, complementary products and services. As other market participants also engage in this field car manufacturers must decide whether they transform their business model. Therefore, the questions arise which are the determining key criteria for the business models, what are the business segments car manufacturers are engaged and how car manufacturers are preparing for the transformation. By using qualitative content analysis, key criteria for business model analysis are derived. The portfolio analysis of six car manufacturers in the German market unveils that a few car manufacturers are in an advanced state while others follow with a considerable lag, or even, are behind. KW - transformation of automobile sector; electric vehicle; electric mobility provider; additional; complementary services and products Y1 - 2017 VL - 2017 IS - Vol. 17 / No. 3 ER -