@article{GrillBronsteinFurmanetal.2012, author = {Grill, E. and Bronstein, A. and Furman, J. and Zee, D.S. and M{\"u}ller, Martin}, title = {International Classification of Functioning, Disability and Health (ICF) Core Set for patients with vertigo, dizziness and balance disorders}, series = {Journal of vestibular research}, journal = {Journal of vestibular research}, editor = {B{\´a}r{\´a}ny Society,}, year = {2012}, abstract = {Vertigo, dizziness and balance disorders have major impact on independence, employability, activities and participation. There are many measures for the assessment of the impact of vertigo, but no consensus exists on which aspects should be measured. The objective of this study was to develop international standards (ICF Core Sets) for patients with vertigo and dizziness to describe functioning. The development of the ICF Core Sets involved a formal decision-making and consensus process, integrating evidence from preparatory studies including qualitative interviews with patients, a systematic review of the literature, a survey with health professionals, and empirical data collection from patients. Twenty-seven experts selected 100 second level categories for the comprehensive Core Set and 29 second level categories for the Brief Core Set. The largest number of categories was selected from the ICF component Activities and Participation (40). Twenty-five categories were selected from the component Body Functions, six from Body Structures, and 29 from Environmental Factors. The ICF Core Set for vertigo is designed for physicians, nurses, therapists and other health professionals working in inpatient or ambulatory settings. ICF Core Sets create patient-relevant outcomes that can be used as evidence for the success of treatments.}, language = {en} } @article{MuellerWhitneyAlghwirietal.2015, author = {M{\"u}ller, Martin and Whitney, S. L. and Alghwiri, A. and Alshebber, K. and Strobl, R. and Aghadir, A. and Almomani, M. O. and Furman, J. M. and Grill, E.}, title = {Subscales of the vestibular activities and participation questionnaire could be applied across cultures}, series = {European journal of epidemiology}, journal = {European journal of epidemiology}, editor = {PlumX Metrics,}, year = {2015}, abstract = {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.}, language = {en} } @article{GrillFurmanAlghwirietal.2013, author = {Grill, E. and Furman, J.M. and Alghwiri, A.A. and M{\"u}ller, Martin and Whitney, S.L.}, title = {Using core sets of the international classification of functioning, disability and health (ICF) to measure disability in vestibular disorders: study protocol}, series = {Journal of vestibular research}, journal = {Journal of vestibular research}, number = {23(6)}, editor = {B{\´a}r{\´a}ny Society,}, year = {2013}, abstract = {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.}, language = {en} } @article{MuellerGrillFurmanetal.2012, author = {M{\"u}ller, Martin and Grill, E. and Furman, J.M. and Alghwiri, A.A. and Whitney, S.L.}, title = {Using core sets of the international classification of functioning, disability and health (ICF) to measure disability in vestibular disorders: study protocol}, series = {Barany Society June 10, 2012 Symposium on Measures for Level of Functioning and Quality of Life in People with Vestibular Disorders}, journal = {Barany Society June 10, 2012 Symposium on Measures for Level of Functioning and Quality of Life in People with Vestibular Disorders}, editor = {IOS Press content Library,}, year = {2012}, abstract = {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.}, language = {en} }