Age at menarche and unsuccessful pregnancy outcome

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Abstract
The relation between age at menarche and unsuccessful pregnancy outcome was examined among women under 40 yr of age. Women with early menarche (under 12) and late menarche (14 or older) had a greater number of unsuccessful pregnancy outcomes than did women of intermediate age at menarche (12 or 13 yr). The differences in means adjusted by covariance analysis for age, total number of pregnancies, age at 1st live birth and socioeconomic status were statistically significant. Among Catholic women, who were unlikely to have had induced abortions at the time of the study, the differences by menarchal age were greater than among non-Catholic women. These findings support those of Liestol (1980) who recently reported a possible causal connection between menarcheal age and spontaneous abortion.

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