Prevalence and characteristics of prenatal cannabis use in Michigan, USA: A statewide population-based pregnancy cohort.

ABSTRACT:

Aims

To estimate the prevalence of prenatal cannabis use in Michigan, USA, using self-reports and urine toxicology and to examine factors associated with use.

Design

Observational study using data from the Michigan Archive for Research on Child Health (MARCH) cohort, part of the National Institutes of Health's Environmental influences on Child Health Outcomes (ECHO) program. It is a prospective statewide pregnancy cohort recruited in 2017-2023 using births as a sampling frame.

Setting

A three-stage stratified cluster sample design that randomly selected hospitals, prenatal clinics and mothers across the lower peninsula of Michigan, where 97% of Michigan hospital births take place.

Participants

Pregnant individuals recruited at their first prenatal visit primari

SUBMITTER: Al-Sahab B 

PROVIDER: S-EPMC12710835 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature