【摘要】 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。更多还原

【Abstract】 Objective The aim of this study was to explore whether eating timing and eating frequency(EF) were associated with overweight/obesity among adults in Chengdu city. Methods A total of 1017 adults aged from 25 to 65 years in Chengdu city were recruited by cluster sampling. And data on dietary intakes and physical activity levels were collected. Body height and weight were measured to calculate body mass index(BMI) and evaluate overweight/obesity. Logistic regression models were built to examine the relationship between EF/eating timing and overweight/obesity. Results The prevalence of overweight/obesity in our study was 48.7%. The number of participants who ate after 20:00 pm was 146(14.4%). Eating frequency was 3.7±0.9 times/day. Late-night eating(eating after 20:00 pm) was positively associated with overweight/obesity(OR =1.18,95% CI:1.02-1.69) after adjustment for potential confounders in logistic regression model. However, EF was not related to overweight/obesity(P=0.106). Conclusion Our results indicated that late-night eating(eating after 20:00 pm) could increase the risk of overweight/obesity, but eating frequency was not associated with overweight/obesity in adults.更多还原