van der Slikke J W, Treffers P E
Br Med J. 1978 Feb 4;1(6108):270-2. doi: 10.1136/bmj.1.6108.270.
We studied the effect of previous induced and spontaneous abortion on gestational duration in subsequent pregnancies in 12 obstetric departments in the Netherlands. Only primiparae were studied. Of 504 women who had had a previous induced abortion, 18 (3.6%) delivered before 32 weeks' gestational age. Forty of 1313 women with a history of spontaneous abortion (3.0%) and 259 of 12 678 women with no history of abortion (2.1%) also delivered before 32 weeks. The differences between the three groups were not significant. In the Netherlands there are no significant indications that spontaneous midtrimester abortions or premature deliveries are caused by a previous induced abortion.
我们在荷兰的12个产科部门研究了既往人工流产和自然流产对后续妊娠孕周的影响。仅对初产妇进行了研究。在504名既往有过人工流产的女性中,18名(3.6%)在孕32周前分娩。1313名有自然流产史的女性中有40名(3.0%),12678名无流产史的女性中有259名(2.1%)也在孕32周前分娩。三组之间的差异不显著。在荷兰,没有明显迹象表明孕中期自然流产或早产是由既往人工流产引起的。