Perceived great risk of regular cannabis varied significantly between 2002–2012 χ2(1, N = 292,106) = 46.61, p<0.001 and decreased from 43.2% in 2002 to 33.5% in 2012 among men χ2(1, N = 51,871) = 155.82, p<0.001 (Supplemental Table 1a1). Similar to the full sample, decreases in perceived great risk were observed for most race/ethnicity and age categories among men. Notable exceptions to this observation, where perceived great risk of regular use did not change significantly across time, included Black men ages 50+, χ2(1, N = 2,339) = 5509.60 p=0.349, Hispanic men ages 50+, χ2(1, N = 1,903) = 2.73, p=0.005, and men of Other race/ethnicity ages 26–49, χ2(1, N = 5,399) = 2.54, p=0.007, as well as respondents ages 50+ χ2(1, N = 1,487) = 1.81, p=0.064.
