Journal article
Retest reliability of self-reported function, self-care, and disease history
Medical care, Vol.43(1), pp.93-97
01/2005
PMID: 15626939
Abstract
Exposures and outcomes frequently are measured by self-reports in epidemiologic studies. However, compared with objective data based on physiologic or laboratory tests, self-reports may suffer from lower accuracy and reliability. In addition, few reports examine reliability in population subgroups, such as black adults.
The authors examined the retest reliability of common self-reports concerning self-care, function, and chronic conditions in a random subsample of 92 middle-aged black subjects from a larger cohort of 998 subjects in St. Louis, Missouri. Subjects completed in-home interviews between September 2000 and July 2001.
Function and self-care measures included 7 basic activities of daily living, 8 instrumental activities of daily living, and 9 items based on the Nagi physical performance scale. Chronic conditions included a list of 11 common diseases and conditions and the 7 items of the Rose Angina protocol. Item level agreement was measured by kappa and scale level agreement was measured by intraclass correlation coefficients.
Function and self-care items demonstrated highly variable agreement with 7 items failing to reach even moderate (kappa = 0.40) levels of agreement. Scale reliability was better, and intraclass correlation coefficients ranged from 0.75 to 0.95. Self-reported chronic conditions all achieved at least moderate agreement, except for angina based on the Rose protocol.
This study provides evidence that summary measures of function and a number of chronic conditions and diseases are reliable based on self-reports from urban black adults.
Details
- Title: Subtitle
- Retest reliability of self-reported function, self-care, and disease history
- Creators
- Elena M Andresen - Department of Health Services Research, Management, and Policy, College of Public Health and Health Professions, University of Florida Health Sciences Center, Gainesville, FL 32610-0195, USA. eandresen@phhp.ul.eduTheodore K MalmstromDouglas K MillerJ Philip MillerFredric D Wolinsky
- Resource Type
- Journal article
- Publication Details
- Medical care, Vol.43(1), pp.93-97
- PMID
- 15626939
- ISSN
- 0025-7079
- eISSN
- 1537-1948
- Grant note
- R01 AG010436 / NIA NIH HHS R01 AG-10436 / NIA NIH HHS
- Language
- English
- Date published
- 01/2005
- Academic Unit
- Health Management and Policy
- Record Identifier
- 9984364414102771
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