论文部分内容阅读
目的:了解信阳市中小学生超重和肥胖流行现状,为制定学生肥胖防治措施提供依据。方法:于2007年采用简单随机抽样原则,抽取在信阳市区出生和成长的7～18岁汉族学生2449名,其中男生1220名,女生1229名。测量学生的肱三头肌和肩胛下角部的皮褶厚度,并通过皮褶厚度推算体密度,计算全身体脂含量,再利用体脂含量判断肥胖率;性别差异比较使用大样本的U检验。结果:学生体脂含量女生随年龄的增长而增加,男生则在11岁时达高峰呈逐渐下降趋势,生长曲线男女无交叉现象。而且相同年龄段的体脂含量均是女生高于男生,并且除11岁年龄组外,其他年龄组差异均有统计学意义(U>1.96,P<0.05)。7～18岁学生总体非肥胖、超重、轻度肥胖和中重度肥胖比率男生分别为64.6%,12.2%,10.5%和12.7%,女生分别为65.7%、10.9%、10.7%和12.6%,经统计学检验差异无统计学意义(χ2=1.075,P>0.05)。结论:信阳市中小学生的超重和肥胖率普遍偏高,预防中小学生肥胖应逐步成为今后学校卫生工作的重点。
Objective: To understand the prevalence of overweight and obesity in primary and secondary school students in Xinyang City, and to provide the basis for the development of students’ obesity prevention and control measures. Methods: In 2007, 2449 Han students aged 7-18 who were born and raised in Xinyang urban area were selected using the simple random sampling principle, including 1220 boys and 1229 girls. The thickness of skinfold of the triceps and subscapular horn of the students was measured. Body fat density was calculated by calculating the bodyfold thickness, and then body fat content was used to judge the obesity rate. The gender difference was compared with U test of large sample. Results: The body fat content of female students increased with age, while the male students reached a peak at 11 years of age, showing a gradual downward trend, with no growth curve of men and women. And body fat content of the same age group is higher than boys, and in addition to 11-year-old age group, the other age groups were statistically significant (U> 1.96, P <0.05). The total number of non-obese, overweight, mild obesity and moderate-to-severe obesity boys at 7-18 years old was 64.6%, 12.2%, 10.5% and 12.7% respectively, and girls were 65.7%, 10.9%, 10.7% and 12.6% Statistical test showed no significant difference (χ2 = 1.075, P> 0.05). Conclusion: The prevalence of overweight and obesity in primary and secondary school students in Xinyang is generally high. Prevention of primary and secondary school obesity should gradually become the focus of school health work in the future.