Evidence map›Paper›PMID 26690802›Full record

ArticleHealth and quality of life outcomes2015

Detecting short-term change and variation in health-related quality of life: within- and between-person factor structure of the SF-36 health survey.

Amanda Kelly, Jonathan Rush, Eric Shafonsky, Allen Hayashi, Kristine Votova, Christine Hall, Andrea M Piccinin, Jens Weber, Philippe Rast, Scott M Hofer

Abstract read
In one paragraph

Article in Health and quality of life outcomes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

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  9. Internal carotid artery occlusion may affect long-term quality of life in patients with high-flow carotid cavernous fistulas.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Amanda KellyDepartment of Psychology, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada. adkelly@uvic.ca.
Jonathan RushDepartment of Psychology, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada. jrush@uvic.ca.
Eric ShafonskyFamily Physician, 2020 Richmond Road, Victoria, BC, V8R 6R5, Canada. eshafonsky@fpmed.ca.
Allen HayashiPediatric and General Surgery, Island Health, 1952 Bay Street, Victoria, BC, V8R 1J8, Canada. ahayashi@surg.bc.ca.
Kristine VotovaDepartment of Research, Island Health, Victoria, BC, Canada. kristine.votova@viha.ca.
Christine HallEmergency Department, Island Health, Victoria, BC, Canada. christinehallmd@gmail.com.
Andrea M PiccininDepartment of Psychology, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada. piccinin@uvic.ca.
Jens WeberDepartment of Computer Science, University of Victoria, Victoria, BC, Canada. jens@uvic.ca.
Philippe RastDepartment of Psychology, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada. prast@uvic.ca.
Scott M HoferDepartment of Psychology, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada. smhofer@uvic.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA major goal of much aging-related research and geriatric medicine is to identify early changes in health and functioning before serious limitations develop. To this end, regular collection of patient-reported outcome measure (PROMs) in a clinical setting may be useful to identify and monitor these changes. However, existing PROMs were not designed for repeated administration and are more commonly used as one-time screening tools; as such, their ability to detect variation and measurement properties when administered repeatedly remain unknown. In this study we evaluated the potential of the RAND SF-36 Health Survey as a repeated-use PROM by examining its measurement properties when modified for administration over multiple occasions.

methodsTo distinguish between-person (i.e., average) from within-person (i.e., occasion) levels, the SF-36 Health Survey was completed by a sample of older adults (N = 122, M age  = 66.28 years) daily for seven consecutive days. Multilevel confirmatory factor analysis (CFA) was employed to investigate the factor structure at both levels for two- and eight-factor solutions.

resultsMultilevel CFA models revealed that the correlated eight-factor solution provided better model fit than the two-factor solution at both the between-person and within-person levels. Overall model fit for the SF-36 Health Survey administered daily was not substantially different from standard survey administration, though both were below optimal levels as reported in the literature. However, individual subscales did demonstrate good reliability.

conclusionsMany of the subscales of the modified SF-36 for repeated daily assessment were found to be sufficiently reliable for use in repeated measurement designs incorporating PROMs, though the overall scale may not be optimal. We encourage future work to investigate the utility of the subscales in specific contexts, as well as the measurement properties of other existing PROMs when administered in a repeated measures design. The development and integration of new measures for this purpose may ultimately be necessary.

Indexed as

AgingHealth StatusHealth SurveysQuality of LifeAgedAged, 80 and overAustraliaFemaleHumansMaleMiddle AgedReproducibility of Results

Identifiers

PMID26690802
PMCPMC4687353

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.