Clinical Edge

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

Study: Marijuana Use and Time to Pregnancy

Fertil Steril; 2018 May; Kasman, Thoma, et al

Neither marijuana use nor frequency of marijuana use was associated with time to pregnancy for men and women, according to a recent study. Researchers conducted a retrospective review of cross-sectional survey data from male and female respondents aged 15–44 years who participated in the 2002, 2006–2010, and 2011–2015 National Survey of Family Growth. The analytic sample consisted of participants who were actively trying to conceive (758 males and 1,076 females). Exposure status was based on the respondents' answers regarding their marijuana use in the preceding 12 months. They found:

  • 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 (95% confidence interval 0.79–1.47) and in women 0.92 (0.43–1.95), demonstrating no statistically significant impact of marijuana use on time to pregnancy.
Citation:

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. Fertil Steril. 2018;109(5):866-871. doi:10.1016/j.fertnstert.2018.01.015.

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