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目的用于儿童青少年超重和肥胖评价的方法很多,各种方法各有优缺点,尚未形成一种统一的评价方法,由此造成不同地区儿童青少年肥胖及超重发病率缺乏可比性。近年来,WHO肥胖工作组的专家建议在儿童肥胖的常规评价中应采用体质指数(BMI)的年龄别百分位数。但是到目前为止,中国还没有BMI的年龄别百分位数报道。本文提供了陕西省0-18岁儿童的BMI的年龄别百分位数曲线。方法采用LMS法拟合曲线;所有分析均采用由TJCole教授提供的LMS法的特殊软件,分性别和地区进行分析。结果BMI中位数曲线由生命早期的12.70kg/m2迅速增加,8个月达高峰,为17.02kg/m2,然后下降,达6岁左右的14.61kg/m2最低点后平稳变化。城市儿童脂肪重聚比乡村儿童早2年,男生比女生早1年,脂肪重聚后,女生的BMI增加比男生快,城市儿童的增加比乡村儿童的快,随着青春期的开始,女生BMI逐渐大于男生,乡村男女生之间的差别大于城市的。陕西省儿童青少年超重百分位数所在曲线男女生分别为P95.3和P94.5,肥胖所在百分位数曲线男女生分别为P99.5和P99.8,明显低于欧美等发达国家的标准。结论通过LMS法,建立了陕西省儿童青少年BMI的年龄别百分位数曲线,百分位数曲线、超重与肥胖的界值可用于陕西省0-18岁儿童青少年营养状况的评价,不同性别、地区间的差别可帮?
Aims There are many ways to evaluate the overweight and obesity of children and adolescents. Each method has its own advantages and disadvantages, but it has not formed a unified evaluation method, which results in the lack of comparability of obesity and overweight among children and adolescents in different regions. In recent years, experts at the WHO Obese Working Group have suggested that age-specific percentiles of body mass index (BMI) should be used in routine assessments of childhood obesity. But so far, China has not reported an age-specific percentile of BMI. This article provides an age-specific percentile curve for BMI in children aged 0-18 years in Shaanxi province. Methods The curves were fitted using the LMS method; all analyzes were performed using special software from the LMS method provided by Professor TJCole, by gender and region. Results The median BMI curve increased rapidly from 12.70 kg / m2 in early life to 17.02 kg / m2 in 8 months, then decreased to a stable level of 14.61 kg / m2 after 6 years old. Urban children fat reunited two years earlier than rural children, boys a year earlier than girls, fat reunification, girls BMI increased faster than boys, urban children increased faster than rural children, with the adolescent beginning, the female BMI Gradually greater than boys, boys and girls in rural areas more than the difference between the city. The boys and girls with overweight percents of children and adolescents in Shaanxi Province were P95.3 and P94.5, respectively, and the percentiles of obesity were P99.5 and P99.8 respectively, significantly lower than those in Europe, the United States and other developed countries standard. Conclusion The age-specific percentile curves of children and adolescents with BMI in Shaanxi Province were established by LMS method. The percentile curves and the cut-off value of overweight and obesity can be used to evaluate the nutritional status of adolescents aged 0-18 in Shaanxi Province. , The difference between regions can help?