The metabolic syndrome and associated risk factors in an urban industrial male population in South India.

Background : The metabolic syndrome is characterized by clustering of risk factors, which predisposes subjects to increased risk of diabetes and cardiovascular disease. Objectives of this study were to estimate prevalence of the metabolic syndrome and determine the association of risk factors with the metabolic syndrome in an urban industrial male population in Chennai, India. Methods : We conducted a cross-sectional survey for male employees working in an industrial unit. The survey included questionnaire for risk factors, anthropometric and blood pressure measurements. Blood samples were collected for the fasting plasma glucose, serum cholesterol, high-density lipoprotein cholesterol and triglycerides. The metabolic syndrome was defined using International Diabetes Federation (IDF) and American Heart Association (AHA)/ national Heart Lung and Blood Institute ( nHLBI) criteria. Results : The total numbers of male subjects included in the study were 1077. The prevalence of the metabolic syndrome was 41.3% and 51.4% using IDF and AHA/ nHLBI criteria respectively. Risk factors were age above 35 years, family history of diabetes and body mass index (BMI) above 23.9 kg/m 2 . The consumption of more than three servings of fruits and vegetables was protective. Conclusion : The prevalence of the metabolic syndrome was very high in select industrial population in south India. Higher BMI and low intake of fruits and vegetables are modifiable by life style modification. Work site screening for the metabolic syndrome would facilitate the early detection and treatment.