了解目前城市社区婴儿母乳喂养现状及不同喂养方式对婴儿生长发育的影响，更好地宣传母乳喂养。

对上海市黄浦区半凇地区的436例6个月龄的婴儿喂养状况、生长发育状况、健康状况进行比较，同时对影响乳母泌乳量的可能因素及影响母乳喂养率的因素进行分析。

本结果显示，本组母乳喂养率为95.6%，但4个月母乳喂养率为77. 7%，6个月为47. 2%;纯母乳喂养率4个月为32.1%，6个月为22.5%。婴儿的平均断乳时间为(6. 37±3. 44)个月。3个月后，人工喂养婴儿的患病率增加，差异有显著意义(P<0.05)。

母乳内含有婴儿所需的各种营养，是婴儿最理想的食物；母乳喂养能促进母婴感情深化，降低婴儿的患病几率。因此，要积极倡导母乳喂养，提高城市社区婴儿母乳喂养率，改善婴儿营养和健康状况，促进儿童的身心发展。

To realize the present current situation of infants breast feeding in the city community and the influence to infant's growth because of difference between each feeding methods, so we can give better propagandize and advocate breast feeding.

Compare to the feeding condition, growth condition and healthy condition of the 436 six-months-age-infants of Huangpu-Bansong region in Shanghai, at the same time, analyse to the possible factors what influence the quantity of the wet nurse's milk and the factors what influence the probability of the breast feeding.

The probability of the mothers who fed mother milk has 95. 6%, but the probability of 4 months of the breast feeding has77. 7%, the 6 months has 47. 2%, but the purely breast feeding of 4 months has 32. 1%, the 6 months has 22. 5%. The infant equally break of the mother's milk time is (6. 37 ± 3. 44)months. The rates of the bottle feeding after 3 months to fall ill increase consumedly, the difference is very clearly (P<0. 05).

The female milk implies various nourishment that a health infant need, is the infant's most ideal food ; Breast feeding can promote deeply female baby's affection ; The breast feeding can reduce the probability of the sick infant. Therefore we must initiate the breast feeding actively, raise the probability of infant's breast feeding of the city community, improve infant's nourishment and healthy condition, promote the child's mind and body to develop.