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Interpregnancy Interval After Pregnancy Loss

Obstet Gynecol; ePub 2017 Nov 3; Sundermann, et al

Because women with interpregnancy intervals of <3 months had the lowest risk of repeat miscarriage, counseling women to delay conception to reduce risk of miscarriage may not be warranted, a recent study suggests. The analysis included 514 pregnant women (median maternal age 30 years; 55.6% had at least 1 previous live birth) in the Right From the Start (2000-2012) community-based prospective cohort study whose most recent pregnancy before enrollment ended in miscarriage. Interpregnancy interval was defined as the time between a prior miscarriage and the last menstrual period of the study pregnancy. Among the findings:

  • 81 (15.7%) participants had a repeat miscarriage in the study pregnancy.
  • When compared with women with interpregnancy intervals of 6-18 months (n=136), women with intervals of <3 months (n=124) had the lowest risk of repeat miscarriage.
  • Attempting to conceive immediately was not associated with increased risk of miscarriage in the next pregnancy.

Citation:

Sundermann AC, Hartmann KE, Jones SH, Torstenson ES, Velez Edwards DR. Interpregnancy interval after pregnancy loss and risk of repeat miscarriage. [Published online ahead of print November 3, 2017]. Obstet Gynecol. doi:10.1097/AOG.0000000000002318.