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Quality of Life Research
Gepubliceerd in: Quality of Life Research 9/2013

01-11-2013

Measurement bias of the SF-36 Health Survey in older adults with chronic conditions

Auteurs: Hongdao Meng, Bellinda L. King-Kallimanis, Amber Gum, Brenda Wamsley

Gepubliceerd in: Quality of Life Research | Uitgave 9/2013

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Abstract

Purpose

The objectives of this study were to investigate the psychometric properties of the SF-36 in a sample of older adults with chronic conditions and to test whether measurement bias exists based on the levels of comorbidity.

Methods

Participants included were 979 cognitively intact older adults with comorbidities who were interviewed at their homes. We examined the psychometric properties of the SF-36 and conducted confirmatory factor analysis (CFA) to investigate the assumption of measurement invariance by the levels of comorbidity.

Results

Overall data quality was high and scaling assumptions were generally met with few exceptions. Floor and ceiling effects were present for the role-physical and role-emotional subscales. Using CFA, we found that a three-factor measurement model fits the data well. We identified two violations of measurement invariance. Results showed that participants with high comorbidity level place more emphasis on social functioning (SF) and bodily pain (BP) in relation to physical health-related quality of life (HRQoL) than those with low comorbidity level.

Conclusions

Measurement bias was present for the SF and BP components of the SF-36 physical HRQoL measure. Researchers should be cautious when considering the use of SF-36 in clinical studies among older adults with comorbidities.
vorige artikel Physical activity and health-related quality of life among adult women in Cali, Colombia: a cross-sectional study
volgende artikel Quality of life, human insecurity, and distress among Palestinians in the Gaza Strip before and after the Winter 2008–2009 Israeli war
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Metagegevens
Titel
Measurement bias of the SF-36 Health Survey in older adults with chronic conditions
Auteurs
Hongdao Meng
Bellinda L. King-Kallimanis
Amber Gum
Brenda Wamsley
Publicatiedatum
01-11-2013
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 9/2013
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-013-0373-1

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