The detection rate of overweight and obesity and its relationship with life style in Xi’an city / 西安交通大学学报(医学版)

ABSTRACT

【Objective】 To understand the prevalence of overweight and obesity in the professional population taking physical examination in Xi’an city so as to analyze the relationship of overweight and obesity with the unhealthy lifestyle and provide scientific evidence for the formulation of obesity management strategies. 【Methods】 A total of 10 616 professional subjects taking health examination were included in the study. Data concerning smoking, drinking, diet, sleep and night shift were collected through questionnaires; the subjects’ height and weight were measured and body mass index (BMI) was calculated. 【Results】 We recruited a total of 10 616 subjects in this study, of whom 8 320 (78.8%) were males and 2 296 (21.1%) were females. The total overweight rate in the study population was 40.8%, with 46.6% for males and 19.6% for females. The total obesity rate was 14.3%, among which 16.8% was for males and 5.0% for females. The overweight rate and obesity rate of males were both significantly higher than those of females (P<0.05). There was a linear correlation of BMI with smoking, drinking, eating habits (vegetarianism, sweet and meat intake), sleeping time, and night shift frequency (P<0.05). There was a grade correlation between exercise frequency and BMI. BMI increased with the increase of exercise frequency (P=0.017). The results of multiple Logistic regression analysis on the influence of different factors on overweight/obesity showed that male, age and meat preference were independent risk factors for overweight, while vegetarianism was the protective factor for overweight. Male, age, smoking, meat preference, and night shift ≥2 times/week were independent risk factors for obesity, while vegetarianism and exercise≥3 times/week were the protective factors. 【Conclusion】 The overweight/obesity rate of males is higher than that of female in Xi’an city. Unhealthy lifestyle such as smoking, meat preference and night shift ≥2 times/week are independent risk factors for obesity, while vegetarian diet and regular exercise habits are conducive to weight management.