发展中国家中等收入人群的童年期社会经济地位与中年肥胖的关联

Objective To explore the association between childhood socioeconomic status (SES) and obesity in the population with medium-income in Taizhou,China.Methods All baseline data were derived from middle-aged population (35-64 years old) in Phase Ⅲ of Taizhou Longitudinal Study (TZL).General obesity and central obesity were measured by body mass index (BMI)≥28.0 kg/m2 and waist circumference (WC) ≥90 cm for male and WC≥80 cm for female,respectively.Three simple in a family (a watch,a sewing machine and a bicycle) which were appropriate in China of the mid-20th century were chosen as the indicators of childhood SES:0,1 or 2 and 3 on behalf of low,medium and high level.Logistic regression models were used to estimate the odds ratio (OR) of the associations.Results The prevalence of general obesity and central obesity were 13.5% and 30.9% in males and 13.6% and 53.7% in females.In males,childhood SES was associated positively with BMI and WC.The crude OR for general obesity was 1.79 (95%CI:1.40-2.28),while for central obesity it was 1.48 (95%CI:1.12-1.80),which were both significant after adjusting for covariates,such as age,marriage status,education level,family income,smoking,alcohol intake and physical activity.In females,childhood SES was associated negatively with BMI and WC.Compared with SES 0 level,the crude OR for general obesity in SES 3 level was 0.72 (95% CI:0.58-0.90),while for central obesity it was 0.45 (95%CI:0.38-0.54),and the latter was also significant after adjusting for the above factors.Conclusions The effects of childhood SES on the risk of obesity in the population with medium-income in developing country differed by gender,which means that males with high childhood SES and females with low childhood SES have higher risk of obesity.Following the economic development,the shift from positive correlation towards negative correlation between childhood SES and obesity may occur earlier in females than in males.