A comparison of the NCEP-ATPIII, IDF and AHA/NHLBI metabolic syndrome definitions with relation to early carotid atherosclerosis in subjects with hypercholesterolemia or at risk of CVD: evidence for sex-specific differences
Abstract
The metabolic syndrome is associated with increased risk of cardiovascular disease. However, the association between metabolic syndrome and atherosclerosis in hypercholesterolemic patients remains unknown. We examined the association between carotid atherosclerosis and metabolic syndrome definitions using the NCEP-ATPIII, International Diabetes Federation (IDF) and American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) definitions in 1782 subjects at risk of cardiovascular disease including 926 with hypercholesterolemia (LDL cholesterol > or =160 mg/dL; mean=203 mg/dL). Irrespective of definition, carotid intima-media thickness was significantly higher in both men and women diagnosed with the MetS compared to those without MetS. This relationship persists in males with hypercholesterolemia, independently of LDL cholesterol level. Regression analyses, both unadjusted and adjusted for traditional risk factors, indicate that in males the AHA/NHLBI definition, and in females the IDF definition are the strongest predictors of carotid atherosclerosis. These results highlight important gender differences that exist in the current clinical definitions of the metabolic syndrome, with regards to predicting early...Continue Reading
References
Impact of obesity on metabolism in men and women. Importance of regional adipose tissue distribution
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