Psychometric validation of the SF-36® Health Survey in ulcerative colitis

results from a systematic literature review

Aaron Yarlas, Martha Bayliss, Joseph C. Cappelleri, Stephen Maher, Andrew G. Bushmakin, Lea Chen, Alireza Manuchehri, Paul Healey

Research output: Contribution to journalReview article

Abstract

Purpose: To conduct a systematic literature review of the reliability, construct validity, and responsiveness of the SF-36® Health Survey (SF-36) in patients with ulcerative colitis (UC). Methods: We performed a systematic search of electronic medical databases to identify published peer-reviewed studies which reported scores from the eight scales and/or two summary measures of the SF-36 collected from adult patients with UC. Study findings relevant to reliability, construct validity, and responsiveness were reviewed. Results: Data were extracted and summarized from 43 articles meeting inclusion criteria. Convergent validity was supported by findings that 83% (197/236) of correlations between SF-36 scales and measures of disease symptoms, disease activity, and functioning exceeded the prespecified threshold (r ≥ |0.40|). Known-groups validity was supported by findings of clinically meaningful differences in SF-36 scores between subgroups of patients when classified by disease activity (i.e., active versus inactive), symptom status, and comorbidity status. Responsiveness was supported by findings of clinically meaningful changes in SF-36 scores following treatment in non-comparative trials, and by meaningfully larger improvements in SF-36 scores in treatment arms relative to controls in randomized controlled trials. The sole study of SF-36 reliability found evidence supporting internal consistency (Cronbach’s α ≥ 0.70) for all SF-36 scales and test–retest reliability (intraclass correlation coefficient ≥0.70) for six of eight scales. Conclusions: Evidence from this systematic literature review indicates that the SF-36 is reliable, valid, and responsive when used with UC patients, supporting the inclusion of the SF-36 as an endpoint in clinical trials for this patient population.

Original languageEnglish (US)
Pages (from-to)273-290
Number of pages18
JournalQuality of Life Research
Volume27
Issue number2
DOIs
StatePublished - Feb 1 2018
Externally publishedYes

Fingerprint

Health Surveys
Ulcerative Colitis
Psychometrics
Reproducibility of Results
Medical Electronics
Comorbidity
Randomized Controlled Trials
Clinical Trials
Databases
Therapeutics
Population

Keywords

  • Psychometric validation
  • SF-36
  • Systematic review
  • Ulcerative colitis

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Psychometric validation of the SF-36® Health Survey in ulcerative colitis : results from a systematic literature review. / Yarlas, Aaron; Bayliss, Martha; Cappelleri, Joseph C.; Maher, Stephen; Bushmakin, Andrew G.; Chen, Lea; Manuchehri, Alireza; Healey, Paul.

In: Quality of Life Research, Vol. 27, No. 2, 01.02.2018, p. 273-290.

Research output: Contribution to journalReview article

Yarlas, A, Bayliss, M, Cappelleri, JC, Maher, S, Bushmakin, AG, Chen, L, Manuchehri, A & Healey, P 2018, 'Psychometric validation of the SF-36® Health Survey in ulcerative colitis: results from a systematic literature review', Quality of Life Research, vol. 27, no. 2, pp. 273-290. https://doi.org/10.1007/s11136-017-1690-6
Yarlas, Aaron ; Bayliss, Martha ; Cappelleri, Joseph C. ; Maher, Stephen ; Bushmakin, Andrew G. ; Chen, Lea ; Manuchehri, Alireza ; Healey, Paul. / Psychometric validation of the SF-36® Health Survey in ulcerative colitis : results from a systematic literature review. In: Quality of Life Research. 2018 ; Vol. 27, No. 2. pp. 273-290.
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AU - Bayliss, Martha

AU - Cappelleri, Joseph C.

AU - Maher, Stephen

AU - Bushmakin, Andrew G.

AU - Chen, Lea

AU - Manuchehri, Alireza

AU - Healey, Paul

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N2 - Purpose: To conduct a systematic literature review of the reliability, construct validity, and responsiveness of the SF-36® Health Survey (SF-36) in patients with ulcerative colitis (UC). Methods: We performed a systematic search of electronic medical databases to identify published peer-reviewed studies which reported scores from the eight scales and/or two summary measures of the SF-36 collected from adult patients with UC. Study findings relevant to reliability, construct validity, and responsiveness were reviewed. Results: Data were extracted and summarized from 43 articles meeting inclusion criteria. Convergent validity was supported by findings that 83% (197/236) of correlations between SF-36 scales and measures of disease symptoms, disease activity, and functioning exceeded the prespecified threshold (r ≥ |0.40|). Known-groups validity was supported by findings of clinically meaningful differences in SF-36 scores between subgroups of patients when classified by disease activity (i.e., active versus inactive), symptom status, and comorbidity status. Responsiveness was supported by findings of clinically meaningful changes in SF-36 scores following treatment in non-comparative trials, and by meaningfully larger improvements in SF-36 scores in treatment arms relative to controls in randomized controlled trials. The sole study of SF-36 reliability found evidence supporting internal consistency (Cronbach’s α ≥ 0.70) for all SF-36 scales and test–retest reliability (intraclass correlation coefficient ≥0.70) for six of eight scales. Conclusions: Evidence from this systematic literature review indicates that the SF-36 is reliable, valid, and responsive when used with UC patients, supporting the inclusion of the SF-36 as an endpoint in clinical trials for this patient population.

AB - Purpose: To conduct a systematic literature review of the reliability, construct validity, and responsiveness of the SF-36® Health Survey (SF-36) in patients with ulcerative colitis (UC). Methods: We performed a systematic search of electronic medical databases to identify published peer-reviewed studies which reported scores from the eight scales and/or two summary measures of the SF-36 collected from adult patients with UC. Study findings relevant to reliability, construct validity, and responsiveness were reviewed. Results: Data were extracted and summarized from 43 articles meeting inclusion criteria. Convergent validity was supported by findings that 83% (197/236) of correlations between SF-36 scales and measures of disease symptoms, disease activity, and functioning exceeded the prespecified threshold (r ≥ |0.40|). Known-groups validity was supported by findings of clinically meaningful differences in SF-36 scores between subgroups of patients when classified by disease activity (i.e., active versus inactive), symptom status, and comorbidity status. Responsiveness was supported by findings of clinically meaningful changes in SF-36 scores following treatment in non-comparative trials, and by meaningfully larger improvements in SF-36 scores in treatment arms relative to controls in randomized controlled trials. The sole study of SF-36 reliability found evidence supporting internal consistency (Cronbach’s α ≥ 0.70) for all SF-36 scales and test–retest reliability (intraclass correlation coefficient ≥0.70) for six of eight scales. Conclusions: Evidence from this systematic literature review indicates that the SF-36 is reliable, valid, and responsive when used with UC patients, supporting the inclusion of the SF-36 as an endpoint in clinical trials for this patient population.

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