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[Obesity and anthropometric indicators in a sample of males with Acute Coronary Syndrome in a health area with inclusion of inmates: case-control study].

OBJECTIVES
Obesity is a cardiovascular risk factor with a high epidemic burden on ischemic heart disease. The aim of this study was to analyze the anthropometric indicators of obesity in a sample of males who have had an Acute Coronary Syndrome (ACS) diagnosed in a prison referral hospital, and a control group.


MATERIAL AND METHODS
Cross-sectional case-control study in a Health Area with inclusion of a penitentiary center. The participants in this study were 204 males, 102 cases and one control selected for each case (n=102). We measured weight, height waist circumference (WC), umbilical waist (UW) and hip circumference. We calculated body mass index (BMI) and other anthropometric indicators: waist to-hip-ratios (WHR and UWHR), waist to-height-ratios (WHtR and UWHtR). We obtained the areas under the receiver operating characteristic curves (AUC), the odds ratio (OR) and the correlations in the infarcted people.


RESULTS
Obesity was more prevalent in ACS (31.4% vs 9.1%; OR: 4.7). Other indicators show a discriminatory association. BMI (AUC: 0.699; OR: 3.9), WC (AUC: 0.750; OR: 6.3), UW (AUC: 0.777; OR: 10), inverse height (AUC: 0.619; OR: 2.1), WHR (AUC: 0.832; OR: 11.6); UWHR (AUC: 0.857; OR: 15.6), UWHtR (AUC: 0.800; OR: 8.9). In ACS the correlations for both WC and UW with waist to-height-ratios (WHtR and UWHtR) were strong (all r ≥0.90; p < 0.001).


DISCUSSION
The anthropometric indicators of obesity are clearly associated with ACS. UW is the simple measurement with the best association. BMI is most weakly associated. UWHtR presents high discriminatory power and the best anthropometric correlation of risk that supports its use for the identification of males at risk of myocardial infarction in the general population and prison.