Validity and reliability of the Medical Outcomes Study Short Form-20 questionnaire as a measure of quality of life in elderly people living at home

the Medical Outcomes Study Short Form-20 (SF-20) questionnaire is recommended for health-related quality of life research, but there is little information on its utility in older people. We assessed the validity, reliability and feasibility of using the SF-20 in an elderly community-dwelling populat...

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Veröffentlicht in:Age and ageing 1999-03, Vol.28 (2), p.169-174
Hauptverfasser: Carver, D J, Chapman, C A, Thomas, V S, Stadnyk, K J, Rockwood, K
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Sprache:eng
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Zusammenfassung:the Medical Outcomes Study Short Form-20 (SF-20) questionnaire is recommended for health-related quality of life research, but there is little information on its utility in older people. We assessed the validity, reliability and feasibility of using the SF-20 in an elderly community-dwelling population. the SF-20 was administered to a stratified, random sample of 333 elderly subjects. assessment of content validity revealed that important domains were lacking, while others appeared to be inappropriately combined. Using Spearman correlation coefficients, the SF-20 had acceptable convergent and discriminant validity. A principal components analysis provided evidence for internal consistency for some of the subscales. Evidence for test-retest reliability was good. while the reliability and feasibility of the SF-20 appear satisfactory, concerns about validity and responsiveness should temper enthusiasm for its use with elderly people living at home.
ISSN:0002-0729
1468-2834
1468-2834
DOI:10.1093/ageing/28.2.169