[Prevalence and risk factors of overweight and obesity among planed pregnancy couples in Chongqing City].

OBJECTIVE

To understand the epidemic situation of overweight and obese among planned pregnancy couples in Chongqing City.

METHODS

Proportional stratified random cluster sampling method was adopted to select 11 953 cases of planned gestational couples from 19 counties in Chongqing from April to December, 2013, for questionnaire survey, physical examination and blood sampling test. The main contents of the questionnaire included demographic characteristics, smoking and drinking history, life and other economic pressures. Physical examination included height, weight, and blood pressure.

RESULTS

Among the 11 953 subjects, the mean body mass index (BMI) was 21. 13 ± 2. 78. The overweight rate was 10. 88% (95% CI 10. 32% - 11. 44%). The obesity rate was 2. 20% (95% CI 1. 94% -2. 46%). The standardized overweight rate was 19. 81% (95% CI 19. 10% -20. 53%). The standardized obesity rate was 3. 47% (95% CI 3. 14% - 3. 80%). The overweight, obesity ratio was 4. 94. The prevalence of overweight and obesity increased with age, and decreased with the increasing of educational level. Non conditional logistic regression analysis showed that multiple factors such as 25 years of age or older, living in the "one hour economic zone" and southeast Chongqing region, hypertension, occupation for business or unemployment were more prone to overweight, while factors such as 35 years of age or older, living in the "one hour economic zone" and southeast Chongqing region, hypertension, occupation for business or unemployment were more prone to obesity. High school education and above was the protective factor for obesity and overweight.

CONCLUSION

Overweight and obesity are in low prevalence state among planned pregnancy couples in Chongqing. The main influence factors of overweight and obesity are age, living region, occupation and educational level.