Clinical Edge

Summaries of Must-Read Clinical Literature, Guidelines, and FDA Actions

Unintended Pregnancy & Interpregnancy Interval

Contraception; ePub 2018 Mar 1; Ahrens, et al

Unintended pregnancies are associated with shorter interpregnancy interval (IPI) across the reproductive age spectrum, a recent study found. Using data from the National Survey of Family Growth, researchers estimated the percentage of pregnancies that were unintended among IPI groups (<6, 6-11, 12-17, 18-23, >24 months) by maternal age at last live birth (15-19, 20-24, 25-29, 30-44 years). They found:

  • ∼40% of pregnancies were unintended and 36% followed an IPI <18 months.
  • The percentage of pregnancies that were unintended decreased as IPI increased within each maternal age group.

Citation:

Ahrens KA, Thoma M, Copen C, et al. Unintended pregnancy and interpregnancy interval by maternal age, National Survey of Family Growth. [Published online ahead of print March 1, 2018]. Contraception. doi:10.1016/j.contraception.2018.02.013.