The construct validity of the Health Utilities Index Mark 3 in assessing mental health in population health surveys |
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Authors: | David Feeny Nathalie Huguet Bentson H McFarland Mark S Kaplan |
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Institution: | (1) The Center for Health Research, Kaiser Permanente Northwest, 3800 N. Interstate Avenue, Portland, 97227-1110, OR, USA;(2) University of Alberta and Institute of Health Economics, Edmonton, AB, Canada;(3) Health Utilities Incorporated, Dundas, ON, Canada;(4) Center for Public Health Studies, Portland State University, Portland, OR, USA;(5) Oregon Health & Science University, Portland, OR, USA;(6) Portland State University, Portland, OR, USA |
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Abstract: | Purpose To examine the construct validity of the Health Utilities Index Mark 3 (HUI3) by exploring relationships among several well-recognized
measures of mental health, the K6 and the Composite International Diagnostic Interview (CIDI), and the HUI3 in a large, nationally
representative sample of community-dwelling subjects. Known-group comparisons were also included in the validation process.
Methods We specified a priori hypotheses about the expected degree of association between the measures. Correlation coefficients of
<0.1 were defined as negligible, 0.1 to <0.3 as small, 0.3 to <0.5 as medium, and ≥0.5 as large. Data from the Statistics
Canada National Population Health Survey (NPHS) Cycle 2 (1996/97) for respondents 20 years of age or older (n = 66,435) were used to test the a priori hypotheses.
Results In 58.1% of cases, predictions of association were correct. Predictions were off by one category in 38.9% of cases and a priori
predictions were off by two categories in 3.0% of cases.
Conclusions Our results provide evidence supporting the cross-sectional construct validity of the HUI3 emotion and HUI3 in a nationally
representative sample of the community-dwelling population. The results also provide further evidence of the cross-sectional
construct validity of the HUI3 in assessing population health.
An erratum to this article can be found at |
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Keywords: | Mental health K6 CIDI Health Utilities Index Population health |
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