In 2010-11, Coloradans, compared to those in NMMS, were less likely to perceive great risk to marijuana use (all age groups), more likely to report that marijuana was fairly/very easy to obtain (all age groups), were less likely to disapprove of use (young and other adults), had higher rates of marijuana use (all age groups), higher prevalence of 20+ days use in the past month (young and other adults) and higher prevalence of past-year marijuana abuse/dependence (adolescents and young adults). However, examining years 2003-4 onward also demonstrates that while these Colorado-vs.-NMMS differences may be widening, many have been present long term. For example, young adult Coloradans have long differed from NMMS young adults in marijuana availability (fairly or very easy to obtain), disapproval of marijuana use and past-year use of marijuana as shown in Figures 1.Bii, 1.C.ii and 2.A.ii.
