Figure 1. Prevalence of Combustible, Edible, and Vaporized Cannabis Product Use.
Prevalence is compared by sex (A) and socioeconomic status (SES) (B). Socioeconomic status was measured as high if at least 1 parent attended college and family income was greater than 185% of the federal poverty line (ineligible for free or subsidized lunch); low, if parental educational attainment was lower or family income was at or below 185% of the federal poverty line. P values were calculated using χ2 test to compare girls vs boys or low vs high SES.