Influence of induced abortion on gestational duration in subsequent pregnancies.

Abstract

made at random, which gives a good indication of the mean COHb concentration in smokers.7A history of an attack of chest pain suggesting myocardial infarction was associated with raised COHb concentrations; a similar relation was not found for smoking history. The association was unlikely to have been caused by greater frequency of "false" attacks of chest pain in men with raised COHb concentrations because. a similar association was found for ECG signs of myocardial infarction. The association was mainly caused by slight rises in COHb concentration (06-2O0O0). The finding of this association among ex-smokers was unexpected; occasional smokers who had already had a myocardial infarction may have denied their habit more often than the other men.Because our subjects were middle-aged and older men from rural areas, we cannot make generalised conclusions. Furthermore, a cross-sectional study such as this has sources of bias: for instance, the men who had diseases associated with smoking may have altered their smoking habits. A prospective population study is needed to clarify the role of carbon monoxide in atherosclerosis. References'Wald, N, et al, Thorax, 1975, 30, 133 British Medical Journal, 1978, 1, 270-272 Summary and conclusions 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. IntroductionShould women who have had induced abortions be afraid of additional risk in subsequent, wanted pregnancies ? Englishl-3 and eastern European4-7 studies show increased numbers of second-trimester spontaneous abortions and premature deliveries in women becoming pregnant after induced abortions. We aimed to evaluate the risks of such complications in Dutch women.

Long-Term Physical and Psychological Health Consequences of Induced Abortion: A Review of the Evidence

“…We found 24 studies that explored associations between abortion and PTB (or a surrogate marker For PTB - low birth weight [LBW]) (Appendix-Table 4). 49–72 Twelve studies found an association between these two phenomena with consistent results in risk ratio elevation of 1.3–2.0. Moreover, seven of the twelve identified a “dose response effect” with risk estimates rising as a woman had more induced abortions.…”

Induced termination of pregnancy and low birthweight and preterm birth: a systematic review and meta‐analyses

“…The results of the search, the study selection log and the number of studies are reported (Figure 1). Thirty‐seven studies were included in this review 4,10–45 . Thirty‐two studies were excluded: Seven studies 3,46–51 reported no neonatal outcome, seven studies 52–58 reported combined spontaneous and I‐TOP data, five studies 59–63 had no comparator group, four reports 5,64–66 were reviews, three studies 67–69 reported on very preterm and moderately preterm data only, two studies 70,71 reported on specific population only, two studies 72,73 had already included data from other reports, one report 74 was a duplicate publication and for one study, 75 data were not ascertainable.…”

Outcome of Delivery Subsequent to Vacuum ‐ Aspiration Abortion in Nulliparous Women

“…Reports in the early 1970's suggesting considerably increased risks of preterm deliveries and low birthweight infants in pregnancies after induced abortion (2, 6, 14, 27) have caused major concern. Knowledge acquired from studies performed during the 1970's, however, have indicated either no or only a slightly increased risk of an unfavorable outcome of subsequent pregnancy after an early induced abortion (3,4,11,29,30,32). but the findings are still conflicting.…”