北京市儿童青少年腰围正常值LMS法研究

Standardized reference of waist circumference among children and adolescents in Beijing using the LMS Method

目的通过分析2010年北京市学生体质健康调研结果,建立北京市儿童腰围筛查分类标准。方法按城乡、经济水平分层,调查北京市6个区40所中小学校和2所大学的7～22岁大中小学生8 795名。按照《2010年全国学生体质健康调研工作手册》规定的方法进行身体测量,以LMS法计算性别年龄别腰围各百分位数值,并绘制LMS曲线,建立北京市儿童青少年腰围正常值。结果北京市7～22岁男生腰围随年龄的增加而增大,女生在12岁以前呈现同样趋势,但之后趋于稳定。18岁男、女生腰围分别为76.62 cm和72.55 cm。不同BMI组别间腰围均值不同,肥胖组>超重组>正常组。北京市18岁男生超重/肥胖的腰围筛查标准是79.72 cm和89.31 cm,女生分别是74.38 cm和84.40 cm。结论LMS法建立的北京市儿童青少年腰围筛查标准准确,可以在北京地区推广使用。

Objective To establish the standardized reference of waist circumference（WC） among children and adolescents in Beijing.Method Stratified by rural and urban areas,level of economic status,a total of 9 421 students aged in 6-22 years from 40 primary and middle schools and 2 colleges in 6 districts of Beijing were investigated.The reference intervals were calculated using the LMS method.Results WC was increasing by age in boys aged 7-22 years old;the same trend was in girls before 12 years old.At 18 years old,average WC was 76.62 cm in boys and 72.55 cm in girls.The WC was highest in obese students,followed by overweight and normal-weight students.WC cut-off values for screening overweight and obesity was 79.72 cm and 89.35 cm in boys aged 18 and 74.38 cm and 84.40 cm in girls,respectively.Conclusion Standardized reference of WC for screening overweight and obesity by using the LMS method is reliable.It can be used in Beijing.