Association of metabolic syndrome and its individual components with outcomes among patients with high-risk non-ST-segment elevation acute coronary syndromes

Published

Journal Article

Background The relationship of metabolic syndrome and its individual components (obesity, hypertension, glucose intolerance, high triglycerides, and low high-density lipoprotein cholesterol) with 1-year mortality in non-ST-segment elevation acute coronary syndromes (NSTE ACS) patients is not known. Methods The association of metabolic syndrome (and its individual components) with all-cause mortality within 1 year was assessed in NSTE ACS patients enrolled in the EARLY ACS trial. Adjusted hazard ratio (HR) and 95% CIs are reported. Results Of 9,406 patients, 2,596 (27.6%) had metabolic syndrome. Compared with those without metabolic syndrome, patients with this syndrome were younger, were more often female, and had a higher prevalence of comorbid conditions and higher-risk presenting features. Metabolic syndrome was not associated with increased 1-year mortality (HR 1.20, 95% CI 0.97-1.47; P =.09). The risk of 1-year mortality varied across the individual components: high-density lipoprotein <40 mg/dL (men)/<50 mg/dL (women; or dyslipidemia) was associated with higher risk (HR 1.52, 95% CI 1.15-2.02), and triglycerides >150 mg/dL (or dyslipidemia) was associated with lower risk (HR 0.66, 95% CI 0.54-0.81), whereas the other components (ie, body mass index >30 kg/m2, fasting plasma glucose >100 mg/dL or diabetes, systolic blood pressure >130 mm Hg or diastolic >85 mm Hg [or hypertension]) were associated with neutral risk of this event. Conclusions The individual components of metabolic syndrome had varying associations with 1-year mortality, and as an integrated diagnosis, metabolic syndrome was not significantly associated with 1-year mortality. Thus, patient case-mix of the studied NSTE ACS population may influence the observed relationship of metabolic syndrome with subsequent cardiovascular events. © 2014 Mosby, Inc.

Full Text

Duke Authors

Cited Authors

  • Mehta, RH; Westerhout, CM; Zheng, Y; Giugliano, RP; Huber, K; Prabhakaran, D; Harrington, RA; Newby, KL; Armstrong, PW

Published Date

  • January 1, 2014

Published In

Volume / Issue

  • 168 / 2

Electronic International Standard Serial Number (EISSN)

  • 1097-6744

International Standard Serial Number (ISSN)

  • 0002-8703

Digital Object Identifier (DOI)

  • 10.1016/j.ahj.2014.04.009

Citation Source

  • Scopus