Discriminative capacity of the EQ-5D, SF-6D, and SF-12 as measures of health status in population health survey

Oriol Cunillera, Ricard Tresserras, Luis Rajmil, Gemma Vilagut, Pilar Brugulat, Mike Herdman, Anna Mompart, Antonia Medina, Yolanda Pardo, Jordi Alonso, John Brazier, Montse Ferrer

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Abstract

Purpose: To compare the EQ-5D, SF-6D, and SF-12 in terms of their capacity to discriminate between groups defined by relevant socio-demographic and health characteristics in a general population survey. Methods: Data were obtained from the 2006 Catalan Health Interview Survey, a representative sample (n = 4,319) of the general population of Catalonia (Spain). Effect sizes (ES) and Receiver Operating Characteristic (ROC) curves were calculated to evaluate the instruments' capacity to distinguish between groups based on socio-demographic variables, recent health problems, perceived health, psychological distress, and selected chronic conditions. Results: All instruments showed a similar discriminative capacity between groups based on socio-demographic variables, recent medical visit (ES = 0.47-0.55), activity limitations (ES = 0.92-0.98), perceived health (ES = 0.97-1.33), and psychological well-being (ES = 1.17-1.57). Effect sizes between respondents with and without any of fourteen selected chronic conditions were large (0.76-1.04) for 4, moderate (0.55-0.74) for 8, and small (0.17-0.39) for two on the EQ-5D index. A similar pattern was observed for the SF-12 but ES were predominantly moderate (7 conditions) or small (6 conditions) on the SF-6D. Conclusions: The EQ-5D and SF-12 were largely comparable in estimating the health burden of chronic conditions, recent health problems, and social inequalities. The SF-6D was less sensitive than the EQ-5D index and SF-12, particularly for physical chronic conditions.
Original languageEnglish
Pages (from-to)853-864
JournalQuality of Life Research
Volume19
Issue number6
DOIs
Publication statusPublished - 1 Aug 2010

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    Cunillera, O., Tresserras, R., Rajmil, L., Vilagut, G., Brugulat, P., Herdman, M., Mompart, A., Medina, A., Pardo, Y., Alonso, J., Brazier, J., & Ferrer, M. (2010). Discriminative capacity of the EQ-5D, SF-6D, and SF-12 as measures of health status in population health survey. Quality of Life Research, 19(6), 853-864. https://doi.org/10.1007/s11136-010-9639-z