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  • Title: Premature coronary heart disease, cigarette smoking, and the metabolic syndrome.
    Author: Tonstad S, Svendsen M.
    Journal: Am J Cardiol; 2005 Dec 15; 96(12):1681-5. PubMed ID: 16360357.
    Abstract:
    The metabolic syndrome and cigarette smoking each increase the risk of a recurrent event in patients with premature coronary heart disease. We explored the association between cigarette smoking and the metabolic syndrome by examining 705 men aged < 55 years and 296 women < 65 years within 6 to 12 months of a major coronary heart disease event. Most were taking statins (96%) and antihypertensive drugs (88%). Nearly 1/3 of the subjects had the full metabolic syndrome, as defined by the National Cholesterol Education Program criteria. These subjects were less likely to be nonsmokers than were those with < or = 2 components of the metabolic syndrome (13.2% vs 24.2%, p < 0.0001). After adjustment for age, educational attendance, and alcohol consumption, the odds ratio (OR) for the metabolic syndrome was doubled in men who smoked cigarettes daily (OR 2.2, 95% confidence interval 1.3 to 3.7) or who were ex-smokers (OR 2.3, 95% confidence interval 1.4 to 3.9) compared with nonsmokers. Female ex-smokers had an increased risk compared with nonsmokers (OR 2.0, 95% confidence interval 1.0 to 3.9). Ex-smokers were more likely to meet the metabolic syndrome cutoff levels for waist circumference and high-density lipoprotein cholesterol (p < or = 0.01) than were nonsmokers. Also, male ex-smokers were more likely to exceed the cutoff level for triglycerides (p = 0.004). These findings indicate that although smoking cessation is imperative for patients with premature CHD, the metabolic risks associated with overweight and obesity after cessation need to be addressed.
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