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目的探讨成都市成年人每日进食时段和进餐次数与超重肥胖的关系。方法采用整群随机抽样法抽取成都市1017名25~65岁成人进行膳食调查和体力活动调查,同时测量身高、体重以计算体重指数判断超重肥胖。采用Logistic回归模型探索进食时段和进餐次数与超重肥胖的关系。结果被调查人群超重肥胖率为48.7%;较晚时段进食(20:00pm后进食)人数为146,占总人群的14.4%;每日进餐次数为(3.7±0.9)次;Logistic回归模型在调整了年龄、性别、吸烟、饮酒、职业、个人月收入、体力活动、入睡时间、睡眠持续时间及20:00 pm后膳食摄入后,发现较晚时段进食(20:00 pm后进食)可增加超重肥胖发生风险(OR=1.18,95%CI:1.02~1.69);而Logistic回归模型在调整了年龄、性别、吸烟、饮酒、职业、个人月收入、体力活动及每日膳食摄入后,未发现进餐次数与超重肥胖间存在有统计学意义的相关关系(P=0.106)。结论成年人较晚时段进食(20:00 pm后进食)可能会增加超重肥胖发生风险,而每日进餐次数与超重肥胖间可能无相关关系。
Objective To investigate the relationship between adult eating habits and overweight and obesity in Chengdu adults. Methods A total of 1017 adults aged 25-65 years in Chengdu were enrolled in the survey and physical activity survey by cluster sampling method. Using Logistic regression model to explore the relationship between eating time and number of meals and overweight and obesity. Results The overweight and obesity rate of the surveyed population was 48.7%. In the later period, the number of eating (eating after 20:00 pm) was 146, accounting for 14.4% of the total population. The daily number of meals was (3.7 ± 0.9) times. Logistic regression model was adjusted Age, sex, smoking, alcohol consumption, occupation, individual monthly income, physical activity, time to sleep, duration of sleep, and dietary intake after 20:00 pm were found to increase after dinner (after 20:00 pm) Risk of overweight and obesity (OR = 1.18, 95% CI: 1.02-1.69); while Logistic regression model did not adjust for age, sex, smoking, drinking, employment, personal monthly income, physical activity and daily dietary intake There was a statistically significant correlation between the number of meals and overweight and obesity (P = 0.106). Conclusion Adults eating later (eating after 20:00 pm) may increase the risk of overweight and obesity, whereas the number of meals per day may not be related to overweight and obesity.