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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Am J Obstet Gynecol. 2017 May 31;217(4):478.e1–478.e8. doi: 10.1016/j.ajog.2017.05.050

Table 2.

Adverse Pregnancy Outcomes in Women who Use Marijuana Compared to Non-Users

Adverse Pregnancy Outcomes
(Unweighted Sample Size)
Any Marijuana
Use
(N=48)
No Marijuana
Use
(N=1562)
P value
Small for Gestational Age 8.2 7.4 0.83
Spontaneous Preterm Birth 13.2 6.2 0.08
Hypertensive Disorder 14.0 9.0 0.28
Composite Endpoint 31.2 21.2 0.13

All results are reported as weighted percentages, p-value from weighted chi-square. The composite endpoint was defined by “any yes” or “all no”, as such some item non-response is present for individual components.