بررسي شيوع و عوامل مرتبط با چاقي در بزرگسالان تهراني : مطالعه قند و ليپيد تهران

Prevalence and associates of obesity in Tehran adults: Tehran Lipid and Glucose Study

Introduction,: Obesity is one of the major health problems which has increased in prevalence since the beginning of 20th century. This study was conducted to measure the prevalence of obesity in adults residing in distinct-13 of Tehran in 1999-2000 and to examine the associations of obesity with some factors. Materials and Methods: A total 9984 subjects (4164 men and 5820 women) aged 20-70 years among who participated in Tehran Lipid and Glucose Study, chosen by multistage cluster random sampling, were assessed. Demographic data were collected and anthropometric indices include weight, height, waist and hip circumference were measured according to standard protocols. Overweight was defined, as body mass index=25-29.9 and obesity was defined as body mass index >?30. Prevalence of obesity and central obesity was determined as the percentage in each age and sex separately. To determine the associations between obesity and other factors logistic regression was used. Results: The mean body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) were 25.8±4.1 kg/m^2.88.3 ±11.4 cm and 0.91±0.07 in men and 27.3±5.4 kg/m^2, 87.5±12.9 cm and 0.830.08 in women, respectively. Obesity and central obesity were more prevalent in women than men (29.1% vs 14.2% for obesity; 66.1% vs 32.1% for centeral obesity, respectively). Low education level in women and illiteracy in men, marriage and low physical activity in both sexes were strongly associated with obesity. Conclusions: The prevalence of obesity in Tehran adults was high. Strong associations between obesity and life style factors confirm the relation between physical activity, education and marriage with obesity.