Clinical Edge

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

Marijuana Use and Time to Pregnancy

Fertil Steril; ePub 2018 Mar 16; Kasman, et al

Neither marijuana use nor frequency of marijuana use is associated with time to pregnancy for men and women, a recent study suggests. The retrospective review of cross-sectional survey data included male and female respondents aged 15 to 44 years who participated in the 2002, 2006-2010, and 2011-2015 National Survey of Family Growth. The primary outcome was estimated time to pregnancy. Researchers found:

  • 758 males and 1,076 female participants responded that they were actively trying to conceive.
  • Overall, 16.5% of men reported using any marijuana while attempting to conceive vs 11.5% of women.
  • The time ratio to pregnancy for never smokers vs daily users of marijuana in men was 1.08 and in women 0.92, which was not statistically significant.


Kasman AM, Thoma ME, McLain AC, Eisenberg ML. Association between use of marijuana and time to pregnancy in men and women: Findings from the National Survey of Family Growth. [Published online ahead of print March 16, 2018]. Fertil Steril. doi:10.1016/j.fertnstert.2018.01.015.

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