Additional file 3.

Associations between the risk factors and overweight plus obesity in men and women. The data summarized the risk factors of overweight and obesity for men and women in logistic regression models. Control: the subjects with 18.5 kg/m2 ≤ BMI < 25 kg/m2. Case: the subjects with BMI ≥ 25 kg/m2. OR: odds ratio; CI: confidence interval. Crude ORs were derived from univariate logistic regression analysis. Adjusted ORs were derived from multivariate logistic regression models with forward stepwise method. For men, the entered variables included age groups (the ORs were presented in Additional file 2), family history of obesity, alcohol intake and smoking; the unentered variables included household income and educational levels. For women, the entered variables included age groups (the ORs were presented in Additional file 2), family history of obesity and education; the unentered variables included household income, smoking and alcohol intake. a*: P < 0.05; a**: P < 0.001.

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Hou et al. BMC Public Health 2008 8:389   doi:10.1186/1471-2458-8-389