深圳市餐饮成年消费人群体质指数值与体重自我评价调查

Study on body mass index and self-evaluation of adult restaurant customers in Shenzhen

目的探讨体质指数（BMI）在深圳成年人的分布特征和体重自我评价情况。方法2008年3月采用随机整群抽样方法随机抽取某些时间段在深圳市某连锁餐饮单位所有的成年消费人群作为调查对象,通过自制问卷实施调查。结果共收集有效问卷703份。样本人群BMI的均值为（21.34±2.94）kg/m2,消瘦、超重和肥胖率分别为15.1%、15.6%和2.6%;女性的消瘦比例显著高于男性,男性的超重比例显著高于女性;18岁年龄组超重和肥胖率最低,随着年龄的增长,超重和肥胖率都呈上升趋势。样本人群对自身体重评价与BMI值的一致率为66.3%,男性和女性对自身体重评价与BMI值的一致率分别为65.5%和67.3%,两者之间差异无统计学意义。结论BMI与性别和年龄有密切关系,正确地认识自身体重状况的健康教育及预防控制超重和肥胖的工作任重道远。

Objective To analyze distribution characteristics of body mass index（BMI） and self-evaluation of adult restaurant customers in Shenzhen.Methods Population-based cross-sectional study was conducted by questionnaire for adult customers in all restaurants of a chain catering in 2008.Results A total of 703 participants were analyzed.The average value of BMI was 21.34±2.94 among the participants.The proportion of emaciation,overweight and obesity were 15.1%,15.6% and 2.6% respectively.The proportion of overweight in male was significantly higher than that in female,while the proportion of emaciation in male was lower than that in female.The proportion of overweight and obesity was the lowest in the group of 18-23 years old and increasing with the growing of age.66.3% participant had accurate self-evaluation with BMI,which was 65.5% in male and 67.3% in female respectively.Conclusion BMI was closely associated with gender and age.It is important to provide health education for proper understanding of BMI.