母乳喂养流行病学调查随访研究:Ⅲ.影响母乳量因素的逐步回归分析

本文用流行病学调查随访研究方法观察了461例乳母分娩后6个月内的母乳喂养情况,并用逐步回归分析方法筛选影响母乳量的因素。经逐步回归分析,最后共筛选出10个因素。其中产后一个月后每天喂奶次数。产后一个月内每天喂奶次数、规律喂奶、月经恢复时间四个因素与母乳量呈正相关(即能增加母乳量);母亲食欲差、家族缺奶史、婴儿发育差、母亲孕乳期患病、药物避孕、乳头内陷六个因素与母乳量呈负相关(即减少母乳量)。影响母乳量的因素是多方面的,用逐步回归分析方法进行分析,比较接近实际情况,也是把多因素分析方法应用于妇幼卫生保健领域中的一种尝试。

An epidemiological survey follow-up study on infant breast-feeding. III. Multiple stepwise regression analysis to factors affecting human milk amount

This paper reports the result of multiple regression analysis to factors affecting human milk amount. By using survey follow-up study method, the data were obtained from 461 mothers who breast-fed their infants within six months after delivery. According to the results of stepwise regression, factors including the number of breast-feeding per day after one month post-partum, the number of breast-feeding per day within one month post-partum, breast-feeding infant regularly, menstruation recovery late are related to the amount of breast milk positively (increasing human milk amount), and factors including maternal poor appetite in lactation period, family deficient breast milk history, infant poor development, maternal disease in pregnancy and lactation period, contraceptive agents used, sunk or sore nipples are related to the amount of breast milk negatively (decreasing human milk amount). Because there are a lot of factors can affect human milk amount, it coincides with practical situation that multiple analysis is used to analysis these factors. It is also an attempt to use this method in mother and infant health care field.