Background: Marijuana use in pregnancy is common and self-report of use to healthcare providers is variable. This study evaluates the relationship between prior interaction with the justice system as well as other factors associated with self-report and continuation of use of marijuana in pregnancy. Methods: This retrospective cohort study included women with a positive urine toxicology test for marijuana at their initial prenatal visit. Prior interaction with the judicial system was determined by querying a .publicly available database. Those who did and did not self-report use were compared using chi square and Fisher´s exact test for analysis of categorical variables and t test for comparison of means. A logistic regression was performed to determine factors related to remaining positive at the time of birth. Results: Of 597 women included in analysis, 308 (51.6%) self-reported use. African American women were more likely to self-report use (p = 0.02). Interaction with the justice system was not statistically predictive of self-report. Of 483 (80.9%) who had birth outcome data available, 117 (24.2%) had positive marijuana tests at the time of delivery. Women who tested positive at birth were older (27.3 v 25, p < 0.01), more likely to present later for care (p = 0.02) and more likely to have self-reported their use at their initial visit (p = 0.03). Discussion: Discrepancies exist between pregnant women´s self-report of marijuana use and biologic testing results. Women with positive toxicology testing who self-report use may do so due to more problematic use and may benefit from enhanced interventions.
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DRUG AND ALCOHOL DEPENDENCE
Paraules clau:
cannabis; marijuana; pregnancy; legalization; self-report; screening