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作者对332名乳母的泌乳功能进行了研究。其中288名橡胶工人为观察组,44名为对照组。二组的年龄、产次、家族史及分娩过程均基本相同。从两组一昼夜的泌乳量来看泌乳不足者,观察组(橡胶工业工人)有72名(23.8%)而对照组仅3名(6.7%),二者有显著差异(P<0.05)。又将橡胶工业工人按工龄分为以下几组:3年—101人,3—5年—72人,5—10年—71人,10年以上—44人。从各工龄组的一昼夜泌乳量来看,工龄少于3年者泌乳不足发生率为16.8%,3—5年者为23.6%,
The author studied the lactation function of 332 lactating mothers. Among them, 288 rubber workers were in observation group and 44 were control group. The two groups of age, parity, family history and childbirth are basically the same process. There were 72 patients (23.8%) in the observation group and only 3 patients (6.7%) in the control group, with significant difference (P <0.05). The rubber industry workers will be divided into the following groups according to their length of service: 3 years -101 people, 3-5 years -72 people, 5-10 years -71 people, more than 10 years -44 people. Judging from the amount of day and night milk produced by each age group, the incidence of under-lactation was less than 3 years and the incidence of lactation was 16.8%, 23.6% in 3-5 years,