
The percentage of women in the study who reported "daily or near daily" cannabis use during pregnancy more than tripled -- from 0.9% of respondents in 2002 to 3.4% by 2017.
The percentage of women in the study who reported "daily or near daily" cannabis use during pregnancy more than tripled -- from 0.9% of respondents in 2002 to 3.4% by 2017.