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目的制订中国0～13周婴儿体重、身长和头围的生长参照值。方法选择“2005年九市7岁以下儿童体格发育调查”中城区18 848名正常0～6个月龄婴儿的体重、身长和头围的测量值建立数据库,测量数据用标准化的测量方法和质量控制程序获得。采用LMS法对原始数据进行拟合修匀,通过L、M、S 3个参数计算产生所需要的百分位数值并绘制相应的生长曲线。增长值根据修匀后数据计算获得。结果获得中国0～13周男、女婴儿每周龄的体重、身长和头围的生长参照值,按P_3、P_(10)、P_(25)、P_(50)、P_(75)、P_(90)及P_(97)列表。此参照值反映的生长趋势与世界卫生组织(WHO)标准一致,总体上体重、身长略高于WHO生长标准,头围差异较小。结论本研究提供的0～13周婴儿的体重、身长和头围生长参照值具有国家代表性,可供儿科临床、儿童保健以及科研工作等参照使用。
Objective To establish the reference value of body weight, length and head circumference of infants from 0 to 13 weeks in China. Methods Select a database of 18,848 normal 0-6 months-old infants in the city of Jiuchi in 2005 for physical development of children under 7 years of age with measurements of body weight, length and head circumference. The measurement data were obtained using a standardized method of measurement And quality control procedures. The original data was fitted and smoothed by LMS method. The required percentile value was calculated by L, M, S parameters and the corresponding growth curve was drawn. The growth value is calculated according to the data after dressing. Results The reference values of body weight, length and head circumference of each male and female babies from 0 to 13 weeks were obtained according to P_3, P_ (10), P_ (25), P_ (50), P_ (75) (90) and P_ (97) lists. This reference value reflects the growth trend consistent with the World Health Organization (WHO) standards, overall body weight, length slightly higher than the WHO growth standard, head circumference difference is small. Conclusion The reference values of body weight, length and head circumference growth of 0-13 weeks babies provided by this study are of national representative and can be used for reference in pediatric clinics, child health care and scientific research.