Perceptions of Safety Around Use of Cannabis and Nicotine/Tobacco in Pregnancy.

The perceived safety of cannabis and nicotine/tobacco use contribute to use of these substances in pregnancy. We assessed time trends in self-reported perception of safety of use of cannabis and nicotine/tobacco among US women of reproductive age. We also reviewed qualitative literature to elucidate factors contributing to the perceived safety of use of cannabis and nicotine/tobacco. US women increasingly perceive cannabis use as posing no health risks; whereas cigarette smoking is perceived as posing substantial health risks. Qualitative studies suggest that personal experiences, sociocultural norms, and environmental factors contribute to the perceived safety of cannabis and nicotine/tobacco use in pregnancy.