Taren D, Chen J
University of Arizona, College of Medicine, Department of Family and Community Medicine, Tucson 85724.
Am J Clin Nutr. 1993 Dec;58(6):862-7. doi: 10.1093/ajcn/58.6.862.
Data were analyzed from a cross-sectional nutrition surveillance survey to determine the association between extended breast-feeding and growth. The sample consisted of 2148 initially breast-fed children between 12 and 47 mo of age. Breast-feeding for > 24 mo was associated with a greater height-for-age Z score, and breast-feeding for > 18 mo was associated with greater weight-for-age and weight-for-height Z scores. These results remained significant after the number of food groups being consumed at 12 mo of age, age when the selected food items were first given to a child, the consumption of powered milk, recent infections, age, sex, birth order, birth weight, county of residence, father's occupation, and mother's education were controlled for. These results suggest that extended breast-feeding in this population, in which food was introduced late in infancy, was associated with improved nutritional status as measured by standard anthropometric indicators.
对一项横断面营养监测调查的数据进行了分析，以确定延长母乳喂养与生长之间的关联。样本包括2148名最初接受母乳喂养、年龄在12至47个月之间的儿童。母乳喂养超过24个月与更高的年龄别身高Z评分相关，母乳喂养超过18个月与更高的年龄别体重和身高别体重Z评分相关。在控制了12个月时食用的食物组数量、首次给儿童喂食所选食物的年龄、奶粉消费、近期感染、年龄、性别、出生顺序、出生体重、居住县、父亲职业和母亲教育程度后，这些结果仍然显著。这些结果表明，在这个婴儿期较晚引入食物的人群中，延长母乳喂养与通过标准人体测量指标衡量的营养状况改善有关。
