Abstract: Objective To explore the risk factors of overweight and obesity for infants,and to provide evidences of the early intervention of child obesity. Methods 2 139 infant were selected by stratified-clustered sampling when they were one month old.Normal group and overweight group were divided by BMI.Meanwhile,related factors were investigated using a standardized questionnaire.The data were analyzed by mono-factorial and multi-factorial conditional logistic regression with SPSS 11.5 software. Results The rate of overweight was 15.96% for 18 months infants.High birth weight(OR=2.07),father overweight (OR=1.07),meat and vegetables consumpution≥7 times/week(OR=1.04、OR=1.05),sweet drinks consumpution＞1 time/week(OR=0.90) were risk factors for obesity. Conclusion High birth weight,genetic and eating habits are the maior risk factors,they should be early and synthetic intervented.

Key words: infant, overweight, obesity, risk factors

摘要： 目的 通过对重庆市婴幼儿超重、肥胖的调查,并对其危险因素进行分析,进而为预防和控制儿童肥胖的发生和发展提供科学依据。方法 在重庆市两个城区按分层整群抽样原则抽取1月龄儿童,并随访至18月龄,资料完整者1 949例,通过BMI评价分为正常组(1 635例)和超重肥胖组(311例)。对两组儿童进行基础调查及饮食调查,对有显著性差异的因素采用SPSS 11.5统计软件进行单因素及多因素Logistic 回归分析。结果 18月龄超重、肥胖率为15.96%, Logistic回归分析显示,高出生体重(OR=2.07)、父亲超重(OR=1.07)、每周肉及菜摄入频率≥7次(OR=1.04、OR=1.05)、每周甜饮料＞1次(OR=0.90)为儿童超重肥胖发生的危险因素。结论 超重、肥胖的发生与高出生体重、遗传、不良的饮食行为等因素有关。肥胖的控制应该从出生时进行,对相关因素及早的进行干预。

关键词: 婴幼儿, 超重, 肥胖, 危险因素