手法を比較

	ICF Coding	Model Disability Survey
分野	Disability Studies	Disability Studies
系統	Process / pipeline	Process / pipeline
提唱年	2001	2022
提唱者	World Health Organization	World Health Organization and World Bank (Model Disability Survey collaboration)
種類	Classification-coding pipeline for functioning and disability	General-population survey operationalizing the ICF biopsychosocial model of functioning
原典	World Health Organization. (2001). International Classification of Functioning, Disability and Health: ICF. Geneva: WHO. ISBN: 9789241545426	Sabariego, C., Fellinghauer, C., Lee, L., et al. (2022). Generating comprehensive functioning and disability data worldwide: development process, data analyses strategy and reliability of the WHO and World Bank Model Disability Survey. Archives of Public Health, 80, 6.
別名	ICF Qualifier Coding, Functioning Profile Coding, ICF Category Assignment	MDS, WHO Model Disability Survey, Metric Disability Continuum Survey, ICF-Based Functioning Survey
関連	3	3
概要	ICF coding is the procedure for describing a person's functioning and disability using the World Health Organization's International Classification of Functioning, Disability and Health (ICF), published in 2001. Rather than recording a diagnosis, the coder selects categories from four components — body functions, body structures, activities and participation, and environmental factors — and appends numeric qualifiers that grade how much of a problem exists or, for environmental factors, whether something is a barrier or a facilitator. The result is a standardized functioning profile that operationalizes the biopsychosocial model of disability and makes information comparable across settings, conditions, and countries.	The Model Disability Survey is a general-population survey developed jointly by the World Health Organization and the World Bank to generate comprehensive, internationally comparable data on functioning and disability. Unlike instruments that classify people as disabled or not, it operationalizes the biopsychosocial model of the WHO ICF, treating disability as the outcome of an interaction between a person's intrinsic capacity and the environment in which they live. The survey collects detailed self-reported information on how much difficulty people have across many domains of functioning, distinguishing what a person can do in a standardized environment (capacity) from what they actually do in their own environment (performance), and it separately measures environmental barriers and facilitators. As documented by Sabariego and colleagues in 2022, these responses are combined using a Rasch measurement model into a single metric scale, so that disability is represented as a continuum running across the whole population rather than as a yes/no category. The result is a graded picture of functioning suited to prevalence estimation, equity analysis, and policy on a comparable metric.