Evaluation of dimensionality in physical functioning construct when combining the health assessment questionnaire with the sf-36® health survey physical functioning scale
نویسندگان
چکیده
منابع مشابه
Development and evaluation of a crosswalk between the SF-36 physical functioning scale and Health Assessment Questionnaire disability index in rheumatoid arthritis
BACKGROUND The SF-36 physical functioning scale (PF-10) and the Health Assessment Questionnaire disability index (HAQ-DI) are the most frequently used instruments for measuring self-reported physical function in rheumatoid arthritis (RA). The objective of this study was to develop a crosswalk between scores on the PF-10 and HAQ-DI in RA. METHODS Item response theory (IRT) methods were used to...
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BACKGROUND Indices of physical function may have a hierarchy of items. In cases where this can be demonstrated it may be possible to reduce patient burden by asking them to complete only those items which relate directly to their own level of ability. OBJECTIVES To determine whether statistical procedures, operationalising what is known as item response theory (IRT), can be used to assess the...
متن کاملDifferential Item Functioning in the SF-36 Physical Functioning and Mental Health Sub-Scales: A Population-Based Investigation in the Canadian Multicentre Osteoporosis Study.
BACKGROUND Self-reported health status measures, like the Short Form 36-item Health Survey (SF-36), can provide rich information about the overall health of a population and its components, such as physical, mental, and social health. However, differential item functioning (DIF), which arises when population sub-groups with the same underlying (i.e., latent) level of health have different measu...
متن کاملCorrelated physical and mental health summary scores for the SF-36 and SF-12 Health Survey, V.1
BACKGROUND The SF-36 and SF-12 summary scores were derived using an uncorrelated (orthogonal) factor solution. We estimate SF-36 and SF-12 summary scores using a correlated (oblique) physical and mental health factor model. METHODS We administered the SF-36 to 7,093 patients who received medical care from an independent association of 48 physician groups in the western United States. Correlat...
متن کاملInterpreting the SF-36 Health Survey
One of the most frequently asked questions about health surveys such as the SF-36® is "what do the numbers mean"? Health status scores are abstractions, which obtain meaning through knowledge of how the scores are related to other variables. Although we may not think about it, this is also true for more commonly used measures. For example, a temperature of 0°C is an abstract number, which becom...
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ژورنال
عنوان ژورنال: Value in Health
سال: 2014
ISSN: 1098-3015
DOI: 10.1016/j.jval.2014.03.1144