Perceived great risk of regular cannabis use varied significantly between 2002–2012 among women overall in the NSDUH χ2(10, N = 267,548) = 68.14, p<0.001, and when comparing the prevalence of perceived great risk in 2002 and 2012 directly, the prevalence decreased significantly (63.1% vs. 50.8%) χ2(1, N = 47,143) = 244.74, p<0.001 (Supplemental Table 2b4). Perceived great risk also varied significantly among women in most race/ethnicity age subgroups, with several exceptions: Hispanic women age 50+ χ2(10, N = 2,475) = 1.27, p=0.252, women of Other race/ethnicity overall χ2(10, N = 21,585) = 2.45, p=0.011, women of Other race/ethnicity ages 12–17 χ2(10, N = 7,308) = 1.93, p=0.051, 26–49 χ2(10, N = 5,691) = 1.83, p=0.065, and 50+ χ2(10, N = 1,729) = 0.94, p=0.476.
