OBJECTIVES: EQ-5D and SF-6D can both be used to derive health utility scores. Variations in utility scores can have a major impact on the results of cost-utility studies. This study aimed to compare the health utility of acute coronary syndrome (ACS) patients from Malaysia measured by the two descriptive systems METHODS: Data was obtained from an earlier study. The study collected data from ACS patients admitted to the Sarawak General Hospital who consented to the study. Validated language versions of the EQ-5D-3L and SF-36v1 were administered during admission and 12-months post-admission. Health utility scores were calculated using the Malaysian EQ-5D-3L utility tariff and Brazier SF-6D algorithm. Patient demographic and clinical data were extracted from medical records.  RESULTS: Data from 100 of