计划生育与产科并发症发生率的关系

INQUIRING INTO THE RELATIONBETWEEN THE INCIDENCE OFOBSTETRIC COMPLICATIONS ANDBIRTH CONTROL

本院１９６４～１９９０年有５６３８１例产妇分娩，１９６４～１９７４年为不限生育期，１９７５～１９８１为限生２孩期，１９８２～１９９０为限生１孩期．这３期经产妇的比例非常显著地减少；中及重度妊高征发生率变化不大；子痫、胎盘早肃利、产后出血的发生率和孕产妇死亡率均显著下降（Ｐ＜０．００５）。前置胎盘、剖宫产率和初产妇多次妊娠率及其产后出剥率都有较大幅度上升（Ｐ＜０．００５）．加强青少年性道德教育，提倡未育者用宫外避孕法可能有助于降低前五胎盘和初产妇产后出血率。

Abstract Of 56381 parturitons (1964-1990) in ourhospital,23205 cases were delivered in no-birthcontrol period (1964 ￣ 1974), 13331 cases were inthe period of limited two children one couple(1975-1981) and 1984 cases were in the birthcontrol period one child one couple(1982- 1990)The ratio of multipara (57.9%, 33.2%, 6.6%)dropped progresssingly.The incidence of moderateand severe PIH changed insignificantly (4.2%,3.9%,3.8%). But the incidence of eclampsia (0.32%,0.25%. 0.10%), abruptic placentae (0.82%, 0.49%.0.20%), postpartum hemorrhage (4.9%, 5.6%, 3.8%)and maternal mortality(90.5/10000 0.52.2/100000,30.2/100000) are descended significantly(p<0.005).The incidence of placenta previa (2.0%,2.7%,2.4 %),cesarean section (3.9%, 10.6%, 28.5%), and theincidence of multipregnancy (7.0%, 11.6%, 29.3%)and postpartum hemorrhage(1.6%, 3.4%, 3.4%) inthe primipara have risen extensively (P<0.05).In order to reduce the incidence ofplacenta previa and postpartum hemorrhage, itis suggested that to strengthen sex educationfor adolescent. advocate extrauterine contra- ception would decrease the injury and inflammationof uterine cavity.