|
|||||
|
|
| 拟合生长标准百分位数曲线的不同方法比较 | |
| 引用本文： | 尚磊,徐勇勇,侯茹兰,张水平,周引荣,陈长生.拟合生长标准百分位数曲线的不同方法比较[J].第四军医大学学报,2000,21(6):676-678. |
| 作者姓名： | 尚磊 徐勇勇 侯茹兰 张水平 周引荣 陈长生 |
| 作者单位： | 1. 第四军医大学预防医学系卫生统计学教研室,陕西,西安,710033 2. 西安医科大学儿少卫生教研室,陕西,西安,710033 3. 西安市妇幼保健医院,陕西,西安,710033 |
| 基金项目： | 全军医药卫生科研基金!( 96M0 987) |
| 摘 要： | 目的 寻找适合于拟合各种人体测量指标的生长标准曲线的方法和途径。方法 采用损失函数（ｌｏｓｓ ｆｕｎｃｔｉｏｎ）和残差平方和（ｒｅｓｉｄｕａｌ ｓｕｍ ｏｆ ｓｑｕａｒｅ）对加权三次样条法（ｗｅｉｇｈｔｅｄ ｃｕｂｉｃ ｓｍｏｏｔｈｉｎｇｓｐｌｉｎｅ）和λ－中位数－变异系数法（λ－ｗｅｄｉａｎ－ｃｏｅｆｆｉｃｉｅｎｔ ｏｆ ｖａｒｉａｔｉｏｎ，ＬＭＳ）进行对比研究。结果 计算了两种方法拟合各组的 |
| 关 键 词： | 发育生物学 模型 统计学 儿童 生长标准曲线 |
Comparison of different approaches of fitting centile curves for growth standard |
|
| SHANG Lei,XU Yong-Yong,HOU Ru-Lan,ZHANG Shui-Ping,ZHOU Yin-Rong,CHEN Chang-Sheng.Comparison of different approaches of fitting centile curves for growth standard[J].Journal of the Fourth Military Medical University,2000,21(6):676-678. | |
| Authors: | SHANG Lei XU Yong-Yong HOU Ru-Lan ZHANG Shui-Ping ZHOU Yin-Rong CHEN Chang-Sheng |
| Abstract: | AIM To find out a method to construct growth curves for various anthropology index. METHODS Loss function and residual sum of square were used to compare thefitting results of LMS method with weighted cubic smoothing spline. RESULTS Loss function and residual sum of square for each method when applied to constructing body mass.height and BMI centile curves for children aged 0-18 years in Xi'an were calculated. Centile curves fitted by LMS method and weighted cubic smoothing spline were presented. CONCLUSION LMS is a simple method. Curves fitted by it are much smoother and the fitting errors are much fewer. Therefore LMS is more suitable for fitting centile curves for body mass, height and BMI than weighted cubic smoothing spline. |
| Keywords: | adolescent medicine developmental biology models statistics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |