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Quality of Life Research
Gepubliceerd in:

01-11-2011

A comparison of the discriminative and evaluative properties of the SF-36 and the SF-6D index

Auteurs: Alex Mutebi, John E. Brazier, Stephen J. Walters

Gepubliceerd in: Quality of Life Research | Uitgave 9/2011

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Abstract

Purpose

To examine whether the move from the multidimensional SF-36 patient-reported outcome measure to the single-index preference-based SF-6D entails a loss in discriminative and evaluative properties, the magnitude of that loss and whether it matters.

Methods

Retrospective analysis of data from studies that used the SF-36 and the derived SF-6D. The discriminative and evaluative properties of the two measures were compared by calculating effect size (ES), standardized response mean (SRM), and relative validity (RV) statistics using the SF-6D as the reference.

Results

Data were available from seven studies and 8,522 subjects. At least one SF-36 scale was always more sensitive than the index. Cross-sectional pooled results showed that physical functioning (RV = 0.19 and ES = 0.13) and PCS (RV = 0.18 and ES = 0.13) were generally most sensitive compared to the index (RV = 0.16 and ES = 0.12). Longitudinal pooled results showed that PCS (RV = 0.20), MCS (RV = 0.17), general health (RV = 0.18), and social functioning (RV = 0.17) were generally more sensitive than the index (RV = 0.14) based on RVs. Longitudinal pooled SRMs were all very small in magnitude.

Conclusion

No scale/dimension consistently had the largest RV, ES, or SRM across all conditions studied. Moving from the SF-36 to SF-6D entails losses of a small magnitude in discriminative and evaluative properties.
vorige artikel BSRS-5 (5-item Brief Symptom Rating Scale) scores affect every aspect of quality of life measured by WHOQOL-BREF in healthy workers
volgende artikel Measuring health and well-being effects in family caregivers of children with craniofacial malformations
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Metagegevens
Titel
A comparison of the discriminative and evaluative properties of the SF-36 and the SF-6D index
Auteurs
Alex Mutebi
John E. Brazier
Stephen J. Walters
Publicatiedatum
01-11-2011
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 9/2011
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-011-9881-z

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