Substitution of SF-36 by SF-12 among Hong Kong Chinese older adults: secondary analysis of randomized controlled trials
Substitution of SF-36 by SF-12 among Hong Kong Chinese older adults: secondary analysis of randomized controlled trials
Purpose: This study aims to examine the appropriateness of substituting the Short-Form 36 (SF-36) by its shortened version (SF-12) in measuring health-related quality of life (HRQoL) in older Chinese population.
Methods: Secondary analysis of two transitional care management programs, conducted from 2009 to 2012, were analyzed (n = 1188, aged 60–97). Participants were discharged patients with respiratory disease, type 2 diabetes, cardiac disease, and renal disease, and were classified according to number of chronic diseases. SF-36 was administered at baseline and 4-week follow-up. Results: Both overestimations and underestimations of HRQoL by SF-12 were found. Most domain scores of SF-36 and SF-12 were highly correlated (Spearman correlation (ρ) > 0.85), with the exception of General Health (ρ = 0.64) and Vitality subscales (ρ = 0.82). Multiple linear regression adjusted for demographic characteristics showed that the four out of eight domains of SF-36 and SF-12 were equivalent in measuring the difference across numbers of chronic diseases (all p < 0.05). Paired sample t tests in 989 (83.2 %) who completed the SF-36 survey 4 weeks after baseline showed that SF-12 overestimated the 4-week changes in most of the domains. Conclusions: The use of the Chinese version of SF-12v2 for reporting the change over time in quality of life among medical patients after hospital discharge may need to be interpreted with caution. The SF-12 tends to underestimate the difference when compared with the SF-36.
Discharged patients, Elderly, Quality of life, Scale development, Validity
635-644
Lee, Paul H.
02620eab-ae7f-4a1c-bad1-8a50e7e48951
Wong, Frances K.Y.
16ef04f5-c554-4606-9b2f-7f604b2495c3
Wang, Shao Ling
8a95861a-2c2d-4640-8fa7-b46dd74206d5
Chow, Susan K.Y.
31c84b71-4832-43e3-bcff-30ae6dbfce60
1 October 2016
Lee, Paul H.
02620eab-ae7f-4a1c-bad1-8a50e7e48951
Wong, Frances K.Y.
16ef04f5-c554-4606-9b2f-7f604b2495c3
Wang, Shao Ling
8a95861a-2c2d-4640-8fa7-b46dd74206d5
Chow, Susan K.Y.
31c84b71-4832-43e3-bcff-30ae6dbfce60
Lee, Paul H., Wong, Frances K.Y., Wang, Shao Ling and Chow, Susan K.Y.
(2016)
Substitution of SF-36 by SF-12 among Hong Kong Chinese older adults: secondary analysis of randomized controlled trials.
International Journal of Behavioral Medicine, 23 (5), .
(doi:10.1007/s12529-016-9542-2).
Abstract
Purpose: This study aims to examine the appropriateness of substituting the Short-Form 36 (SF-36) by its shortened version (SF-12) in measuring health-related quality of life (HRQoL) in older Chinese population.
Methods: Secondary analysis of two transitional care management programs, conducted from 2009 to 2012, were analyzed (n = 1188, aged 60–97). Participants were discharged patients with respiratory disease, type 2 diabetes, cardiac disease, and renal disease, and were classified according to number of chronic diseases. SF-36 was administered at baseline and 4-week follow-up. Results: Both overestimations and underestimations of HRQoL by SF-12 were found. Most domain scores of SF-36 and SF-12 were highly correlated (Spearman correlation (ρ) > 0.85), with the exception of General Health (ρ = 0.64) and Vitality subscales (ρ = 0.82). Multiple linear regression adjusted for demographic characteristics showed that the four out of eight domains of SF-36 and SF-12 were equivalent in measuring the difference across numbers of chronic diseases (all p < 0.05). Paired sample t tests in 989 (83.2 %) who completed the SF-36 survey 4 weeks after baseline showed that SF-12 overestimated the 4-week changes in most of the domains. Conclusions: The use of the Chinese version of SF-12v2 for reporting the change over time in quality of life among medical patients after hospital discharge may need to be interpreted with caution. The SF-12 tends to underestimate the difference when compared with the SF-36.
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Published date: 1 October 2016
Additional Information:
Funding Information:
The health-social partnership transitional care management program was supported by The Hong Kong Jockey Club Charities Trust (PolyU Account 5ZH60) and the enhanced transitional care management program was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (RGC Ref No. 547909). The funding bodies were not involved in study design, data collection, data analysis, interpretation, writing the report, nor the decision to submit the article for publication.
Publisher Copyright:
© 2016, International Society of Behavioral Medicine.
Keywords:
Discharged patients, Elderly, Quality of life, Scale development, Validity
Identifiers
Local EPrints ID: 475168
URI: http://eprints.soton.ac.uk/id/eprint/475168
ISSN: 1070-5503
PURE UUID: 75c77287-e732-495c-9a2e-3357c5930c5f
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Date deposited: 10 Mar 2023 17:59
Last modified: 18 Mar 2024 04:09
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Contributors
Author:
Paul H. Lee
Author:
Frances K.Y. Wong
Author:
Shao Ling Wang
Author:
Susan K.Y. Chow
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