哺乳闭经避孕法对提高产后避孕率的临床观察

Clinical Observation of Lactational Amenorrhea Method

观察哺乳闭经避孕法(LAM)中不同喂养方式对产后闭经时间和妊娠率的影响。本研究随机选择1996年5月～1997年5月在天津中心妇产科医院分娩的正常足月初产妇200例,比较不同喂养方式的产后闭经时间和妊娠率。结果:全哺乳组闭经时间(8.77±3.26月)长于部分哺乳组(2.87±1.47月),两组差异有显著性(P<0.05)。部分哺乳组长于非哺乳组(1.95±1.03月),两者差异有显著性(P<0.05)。全哺乳组妊娠率(1.2％)最低,其次为部分哺乳组(5.0％)及非哺乳组(10.0％),三组间差异均有显著性(P<0.01)。结果表明LAM是一种非常可取的避孕方法。

Objective: To observe the effect of different feeding manner of LAM on postnatal contraception rate and amenorrhea period. Method: To randomly select 200 cases of healthy mature primipara which delivered in Tianjin central obstetrics and gynecology hospital from May. 1996 to May. 1997, and compare postnatal amenorrhea period with pregnancy rate of different feeding mode. Result: The amenorrhea period of complete breastfeeding group(8. 77 ± 3.26months)is longer than that of partly breastfeeding group (2.87 ± 1.47months). The difference between the two groups was statistically very significant ( P < 0. 05 ) . The a-menorrhea period of partly breastfeeding group is longer than that of nonbreastfed group (1.95 ±1. 03months). The difference between the two groups was statistically very significant P < 0.05). The pregnancy rate of compelete breastfeeding group is the low est ( 1 . 2 % ) , and that of partly breastfeeding group (5.0%) is lower than nonbreastfed group ( 10. 0% ). The difference among the three groups was statistically very significant ( P < 0. 01) . The result showed that LAM was a favourable contraception method.