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A. Besoain-Saldaña1,2, J. Rebolledo Sanhueza1,2, C. Barrios Troncoso2,1, M. Tamayo Rozas1, F. Gallardo3, J. Leiva3, F. Peña3
1Universidad de Chile, Department of Physical Therapy, Santiago, Chile, 2Universidad de Chile, Núcleo Desarrollo Inclusivo, Santiago, Chile, 3Municipalidad de Cerro Navia, Secretaría Comunal de Planificación, Santiago, Chile
Background: About 15% of the world's population lives with some form of disability, of whom 2-4% experience significant difficulties in functioning. Nevertheless, disability data have wide instruments of evaluation and monitoring. Therefore, validation of instruments capable of determining disability provide possibilities for public policies in health, for example access to rehabilitation, work inclusion and social participation.
In physiotherapy, evaluating disability in social and clinical context is a crucial area for effective approaches that resolve health needs of our patients. Whence, instruments that understand disability from International Classification of Functioning (ICF) are necessary for aboard health and rehabilitation needs from a perspective that includes impairment, activities and participations.
Local governments, in charge of implementing primary health care services, lack accurate data on rehabilitation and disability needs, undervaluing kinesiology in these spaces. The WHO Model Disability Survey is an instrument based on ICF for public policies measurements of disability. Nevertheless, its duration and complexity is incompatible to the requirements of PHC. Meanwhile, brief model disability survey is a shortened version validated in english, and only has been spanish traduction and retrotraduction of instrument, nevertheless, it has not been validated by psychometrics quantitative technique.
In physiotherapy, evaluating disability in social and clinical context is a crucial area for effective approaches that resolve health needs of our patients. Whence, instruments that understand disability from International Classification of Functioning (ICF) are necessary for aboard health and rehabilitation needs from a perspective that includes impairment, activities and participations.
Local governments, in charge of implementing primary health care services, lack accurate data on rehabilitation and disability needs, undervaluing kinesiology in these spaces. The WHO Model Disability Survey is an instrument based on ICF for public policies measurements of disability. Nevertheless, its duration and complexity is incompatible to the requirements of PHC. Meanwhile, brief model disability survey is a shortened version validated in english, and only has been spanish traduction and retrotraduction of instrument, nevertheless, it has not been validated by psychometrics quantitative technique.
Purpose: The aim of this study was to determine content validity, fiability and construct validity of a brief disability model survey in an urban chilean population for local government population.
Methods: A quantitative, observational, analytical and cross-sectional validation study was performed. This study was elaborated in three phases: Expert Content validation, Pre-test and psychometric test through exploratory factorial analysis. A complex design was performed with a cluster sampling to people over 18 years old living in Cerro Navia (Chile). Disability was evaluated using a ICF based who recommended model of Partial Credit Model for determining disability in population studies. Comparison between no disability and people with disability was performed. Alpha cronbach test and exploratory factorial analysis was performed.
Results: Expert content validation confirmed spanish version of brief model disability survey and had linguistic equivalence in chilean population. 716 persons were evaluated in test analysis, 56,9% women. A Cronbach’s Alpha of 0.832 was obtained in the general population, including capacity and performance (24 variables). Reliability of capacity and performance were 0.896 and 0.636, respectively. Kaiser-Meyer-Olkin and Barlett’s Sphericity test supported Exploratory factorial analysis. Performance componente was explained (57.8%) by three components (Mobility, general well-being and self care), meanwhile capacity component was explained by one factor (48%).
Conclusion(s): Brief Model Disability Survey was shown content validity, reliability and construct validity for population utilisage by local governments. Internal consistency is acceptable for use in people with disability and no disability. Performance component has shown a multifactorial description of disability, meanwhile capacity has a unifactorial description of disability.
Implications: Local public policies and rehabilitation needs in spanish local communities can be justified with an ICF based instrument in the general population, people with and without disability. Instrument is valid and improves an accurate understanding of disability in communities. .
Funding, acknowledgements: We acknowledge the local government of Municipalidad de Cerro Navia (Chile) and support of WHO and National Disability Service (Chile).
Keywords: Disability studies, Public policy, Disability evaluation
Topic: Disability & rehabilitation
Did this work require ethics approval? Yes
Institution: Universidad de Chile
Committee: Comité de Ética de Investigación en Seres Humanos, Facultad de Medicina
Ethics number: 197-2017
All authors, affiliations and abstracts have been published as submitted.
