兴安镇
兴安镇-
采用横断面整群抽样和双重筛选逐步回归分析的方法，对广西壮族自治区兴安县城关镇500例4岁以内婴幼儿体格发育与营养状况的影响因素进行了探讨。
Using the method of cross-sectional cluster sampling and double stepwise regression for multivariate Y , the physical development and nutritional status and their main risk factors on children under the age of four years were studied in Xingan county , Guangxi , China .