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３７７１例产妇，其中胎膜早破产妇６５９例，胎膜未破产妇３１１２例，二者经临床比较分析，结果表明：胎膜早破与骨盆大小无关，与胎儿位置异常（臀位、头位异常）有密切关系。其剖宫产率分别为４０８２％、２９５３％，有显著性差异，说明胎膜早破是难产的警戒信号。胎膜早破组围产儿死亡率与胎膜未破组相比较Ｐ＜００５，说明胎膜早破亦是围产儿死亡的重要原因。
3771 cases of maternal, including premature rupture of membranes in 659 cases of premature rupture of membranes and 3112 cases of unruptured women, both by clinical comparative analysis showed that: premature rupture of membranes and pelvic size has nothing to do with the fetal position abnormalities (breech, head position Abnormal) are closely related. The cesarean section rates were 40 82%, 29 53%, a significant difference, indicating premature rupture of membranes is a warning signal of dystocia. Premature rupture of membranes group of perinatal mortality and unruptured group compared P <0 05, premature rupture of membranes is also an important cause of perinatal death.