Association between use of marijuana and time to pregnancy in men and women: findings from the National Survey of Family Growth

To determine if regular use of marijuana has an impact on time to pregnancy. 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. Not applicable. The National Sur...

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Bibliographic Details
Published in:Fertility and sterility 2018-05, Vol.109 (5), p.866-871
Main Authors: Kasman, Alex M., Thoma, Marie E., McLain, Alexander C., Eisenberg, Michael L.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Cannabis - adverse effects
Cross-Sectional Studies
Female
Fertility
Fertilization - drug effects
Fertilization - physiology
Humans
infertility
Male
marijuana
Marijuana Use - epidemiology
Marijuana Use - trends
Pregnancy
Retrospective Studies
Surveys and Questionnaires
Time-to-Pregnancy - drug effects
Time-to-Pregnancy - physiology
United States - epidemiology
Young Adult
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Summary:To determine if regular use of marijuana has an impact on time to pregnancy. 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. Not applicable. The National Survey of Family Growth is a nationally representative population-based sample derived from stratified multistage area probability sampling of 121 geographic areas in the U.S. Our analytic sample was participants who were actively trying to conceive. Exposure status was based on the respondents' answers regarding their marijuana use in the preceding 12 months. The main outcome was estimated time to pregnancy, which was hypothesized before analysis to be delayed by regular marijuana use. A total of 758 male 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, versus 11.5% of women. The time ratio to pregnancy for never smokers versus 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. Our study suggests that neither marijuana use nor frequency of marijuana use was associated with time to pregnancy for men and women.
ISSN:0015-0282
1556-5653
DOI:10.1016/j.fertnstert.2018.01.015