Use of the EQ-5D Instrument and Value Scale in Comparing Health States of Patients in Four Health Care Programs among Health Care Providers

ObjectivesThe main objective of this article was to explore the use of the patient evaluation of health states in determining the quality of health care program provision among health care providers. The other objectives were to explore the effect of size and status of health care providers on patient-reported outcomes.MethodsThe EuroQol five-dimensional questionnaire was used in four health care programs (hip replacement, hernia surgery, carpal tunnel release, and veins surgery) to evaluate patients’ health states before and after the procedure, following carefully prepared instructions. Data were collected for a single year, 2011. The number of questionnaires filled by patients was 165 for hip replacement, 551 for hernia surgery, 437 for vein surgery, and 158 for carpal tunnel release. The data were analyzed using linear regression model and the EuroQol five-dimensional questionnaire value set for Slovenia. Differences between providers were determined using the Tukey test. Potential quality-adjusted life-years (QALYs) gained for all four programs were calculated for the optimal allocation of patients among providers.ResultsThere are significant differences among health care providers in the share of patients who reported positive changes in health care status as well as in average improvement in patient-reported outcomes in all four programs. In the case of optimal allocation, each patient undergoing hip replacement would gain 2.25 QALYs, each patient undergoing hernia surgery would gain 0.83 QALY, each patient undergoing veins surgery would gain 0.36 QALY, and each patient undergoing carpal tunnel release would gain 0.78 QALY.ConclusionsThe analysis exposed differences in average health state valuations across four health care programs among providers. Further data on patient-reported outcomes for more than a single year should be collected. On the basis of trend data, further analysis to determine the possible causes for differences should be conducted and the possibility to use this approach for measuring health care providers’ performance and its use in contracting should be explored.