BACKGROUND: 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. METHODS: the SF-20 was administered to a stratified, random sample of 333 elderly subjects. FINDINGS: 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. INTERPRETATION: 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.
BACKGROUND: 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. METHODS: the SF-20 was administered to a stratified, random sample of 333 elderly subjects. FINDINGS: 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. INTERPRETATION: 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.
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Authors: Vincent W V Jaddoe; Cornelia M van Duijn; Albert J van der Heijden; Johan P Mackenbach; Henriëtte A Moll; Eric A P Steegers; Henning Tiemeier; Andre G Uitterlinden; Frank C Verhulst; Albert Hofman Journal: Eur J Epidemiol Date: 2008-12-20 Impact factor: 8.082
Authors: Vincent W V Jaddoe; Cornelia M van Duijn; Oscar H Franco; Albert J van der Heijden; Marinus H van Iizendoorn; Johan C de Jongste; Aad van der Lugt; Johan P Mackenbach; Henriëtte A Moll; Hein Raat; Fernando Rivadeneira; Eric A P Steegers; Henning Tiemeier; Andre G Uitterlinden; Frank C Verhulst; Albert Hofman Journal: Eur J Epidemiol Date: 2012-10-20 Impact factor: 8.082
Authors: Vincent W V Jaddoe; Cock M van Duijn; Albert J van der Heijden; Johan P Mackenbach; Henriëtte A Moll; Eric A P Steegers; Henning Tiemeier; Andre G Uitterlinden; Frank C Verhulst; Albert Hofman Journal: Eur J Epidemiol Date: 2010-10-22 Impact factor: 8.082
Authors: Kirsten J E Asmus-Szepesi; Paul L de Vreede; Anna P Nieboer; Jeroen D H van Wijngaarden; Ton J E M Bakker; Ewout W Steyerberg; Johan P Mackenbach Journal: BMC Geriatr Date: 2011-08-03 Impact factor: 3.921