目的了解南通市区高中生饮食锻炼以及体质指数现况,为相关行为干预和指导提供依据。方法采用分层整群随机抽样法对南通市区5所高中共985人进行现场自填问卷式调查,将所得数据按性别计算报告率,并进行组间卡方检验,最后计算并描述体质指数分布情况,筛查出超重和肥胖者的比例。结果从饮食行为来看,有30.15%的人经常吃甜点,女生多于男生;经常喝牛奶的人不到一半,占41.32%,女生明显少于男生;偏食挑食的学生占35.33%;能够每天坚持锻炼的人极少,仅占9.85%,女生明显少于男生。男、女生体质指数均值分别为:20.83±2.99和19.89±2.84,其中男生超重者占9.58%,肥胖者占3.45%;女生超重者占3.23%,肥胖者占1.61%,男生显著多于女生。结论南通市区高中生饮食行为总体比较健康,但远未达到国家建议的每天一杯奶的要求,且参加体育锻炼的时间相当不足,还有一部分经常吃甜点和偏食挑食的现象存在。体质指数基本正常,超重、肥胖者比例明显低于江苏全省水平。 Objective To understand the current situation of dietary exercise and body mass index of high school students in Nantong City and provide the basis for relevant behavioral intervention and guidance. Methods A stratified cluster random sampling method was used to survey 985 people from 5 high schools in Nantong City on the spot by questionnaire survey. The data were calculated by sex and reported by sex, and the inter-group chi-square test was conducted. Finally, the body mass index Distribution, screening out the proportion of overweight and obese. The results from the diet behavior point of view, 30.15% of people often eat desserts, girls than boys; often less than half of the people who drink milk, accounting for 41.32%, girls were significantly less than boys; partial eclipse picky students accounted for 35.33% Very few people insist on exercising, accounting for only 9.85%, girls were significantly less than boys. The average body mass index of males and females were 20.83 ± 2.99 and 19.89 ± 2.84, respectively. Among them, male overweight accounted for 9.58%, obese accounted for 3.45%, female overweight accounted for 3.23%, obese accounted for 1.61%, and boys were significantly more than girls. Conclusion The nutrition behavior of high school students in Nantong City is generally healthy. However, it is far from the requirement of a cup of milk recommended by the state, and the time for physical exercise is quite inadequate. There are also some eating sweets and partial eclipse picky eaters. BMI is basically normal, overweight, obese people was significantly lower than the province level.