【摘要】 目的　年龄别百分位数是许多临床参考值的基本参数,本文研究一种适合于任意分布,能更精确描述这些基本参数随年龄变化的曲线平滑方法。方法　采用LMS法建立西安市0～18岁人群青少年体重百分位数曲线。结果　给出了各组的年龄别L,M,S曲线和百分位数曲线。结论　该法用于西安市0～18岁人群体重百分位数曲线的拟合结果非常满意。更多还原

【Abstract】 Objective To construct age related centile curves,which can be read off as clinical references by a more flexible and more precise smoothing method to describe the numerical change with age.Methods Using LMS method constructing weight centile curves for children aged 0～18 years in Xi’an.Results Age related L,M,S curve were fitted and weight centile curves are presented.Conclusion The results show LMS method is a useful and satisfactory method for constructing age related centile curve.更多还原