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Retrospective studies have suggested that infertile women have higher incidence of adverse pregnancy outcomes regardless of treatment, but controversy about this issue continues. Investigators compared pregnancy outcomes in women attending a fertility clinic (3188 singleton and 350 twin pregnancies) at one regional hospital in Scotland with outcomes of all other women delivering at that hospital during the same 20-year period (52,443 singleton and 1125 twin pregnancies).
Adjusted analysis indicated that women with histories of infertility who delivered singletons had modestly elevated risk for preeclampsia (relative risk, 1.18), antepartum hemorrhage (RR, 1.32), induction of labor (RR, 1.21), elective or emergency cesarean delivery (RR, 1.19…