Appendix.

The Prevalence and Frequency of Past-Year Cannabis Use among Patient Demographic and Behavioral Health Subgroups

Conditions/Diagnoses in Prior YearBehavioral Health Screens
Tobacco UseMajor DepressionAnxietySerious Mental IllnessAlcohol Use DisorderOther Drug Use DisorderDepression (PHQ2)Unhealthy Alcohol UseIllicit Drug Use/Rx Misuse
%95% CI%95% CI%95% CI%95% CI%95% CI%95% CI%95% CI%95% CI%95% CI
Age 30 to 49 years
    Women(n = 371)(n = 554)(n = 634)(n = 123)(n = 48)(n = 32)(n = 527)(n = 881)(n = 48)
        Any use29.9(25.3 to 34.6)21.8(18.4 to 25.3)22.2(19.0 to 25.5)30.1(21.9 to 38.2)25(12.6 to 37.4)34.4(17.7 to 51.1)28.5(24.6 to 32.3)28.6(25.6 to 31.6)47.9(33.6 to 62.2)
            Frequency of use
            None70.1(65.4 to 74.8)78.2(74.7 to 81.6)77.8(74.5 to 81.0)69.9(61.8 to 78.1)75(62.6 to 87.4)65.6(48.9 to 82.4)71.5(67.7 to 75.4)71.4(68.4 to 74.4)52.1(37.8 to 66.4)
            >Daily19.7(15.6 to 23.7)17(13.8 to 20.1)16.4(13.5 to 19.3)22.8(15.3 to 30.2)18.8(7.6 to 29.9)28.1(12.3 to 44.0)19.5(16.2 to 22.9)25(22.1 to 27.8)37.5(23.7 to 51.4)
            Daily10.2(7.2 to 13.3)4.9(3.1 to 6.7)5.8(4.0 to 7.7)7.3(2.7 to 11.9)6.3(−0.7 to 13.2)6.3(−2.3 to 14.8)8.9(6.5 to 11.4)3.6(2.4 to 4.9)10.4(1.7 to 9.2)
    Men(n = 323)(n = 05)(n = 233)(n = 52)(n = 54)(n = 33)(n = 335)(n = 609)(n = 39)
        Any use36.5(31.3 to 41.8)33.7(27.2 to 40.2)28.8(22.9 to 34.6)36.5(23.3 to 49.8)38.9(25.8 to 52.0)45.5(28.2 to 62.7)37.6(32.4 to 42.8)38.6(34.7 to 42.5)71.8(57.5 to 86.1)
        Frequency of use
            None63.5(58.2 to 68.7)66.3(59.9 to 72.8)71.2(65.4 to 77.1)63.5(50.2 to 76.7)61.1(48.0 to 74.2)54.6(37.3 to 71.8)62.4(57.2 to 67.6)61.4(57.5 to 65.3)28.2(13.9 to 42.5)
            >Daily24.8(20.1 to 29.5)22.4(16.7 to 28.2)19.3(14.2 to 24.4)23.1(11.5 to 34.7)29.6(17.3 to 41.9)21.2(7.0 to 35.4)20.6(16.3 to 24.9)29.4(25.8 to 33.0)41(25.4 to 56.7)
        Daily11.8(8.2 to 15.3)11.2(6.9 to 15.6)9.4(5.7 to 13.2)13.5(4.1 to 22.8)9.3(1.5 to 17.1)24.2(9.4 to 39.1)17(13.0 to 21.1)9.2(6.9 to 11.5)30.8(16.1 to 45.5)
Age ≥50 years
    Women(n = 628)(n = 1627)(n = 1274)(n = 293)(n = 100)(n = 51)(n = 1306)(n = 2056)(n = 60)
        Any use19.8(16.6 to 22.9)12.9(11.3 to 14.5)13(11.1 to 14.8)11.3(7.6 to 14.9)21(13.0 to 29.0)19.6(8.6 to 30.6)14.9(12.9 to 16.8)14.1(12.6 to 15.6)41.7(29.1 to 54.3)
        Frequency of use
            None80.3(77.1 to 83.4)87.1(85.5 to 88.7)87.1(85.2 to 88.9)88.7(85.1 to 92.4)79(71.0 to 87.0)80.4(69.4 to 91.4)85.2(83.2 to 87.1)85.9(84.4 to 87.4)58.3(45.8 to 70.9)
            >Daily14.7(11.9 to 17.4)10(8.5 to 11.4)10.2(8.5 to 11.9)7.2(4.2 to 10.1)16(8.8 to 23.2)15.7(5.6 to 25.8)9.8(8.2 to 11.4)12.3(10.8 to 13.7)28.3(16.8 to 39.8)
            Daily5.1(3.4 to 6.8)3(2.1 to 3.8)2.8(1.9 to 3.7)4.1(1.8 to 6.4)5(0.7 to 9.3)3.9-(1.5 to 9.3)5.1(3.9 to 6.2)1.9(1.3 to 2.4)13.3(4.7 to 22.0)
    Men(n = 512)(n = 616)(n = 502)(n = 152)(n = 155)(n = 40)(n = 920)(n = 1553)(n = 71)
        Any use27.3(23.5 to 31.2)18.3(15.3 to 21.4)19.5(16.1 to 23.0)19.1(12.8 to 25.4)23.9(17.1 to 30.6)30.0(15.6 to 44.4)20.5(17.9 to 23.2)24.0(21.9 to 26.1)50.7(39.0 to 62.4)
        Frequency of use
            None72.7(68.8 to 76.5)81.7(78.6 to 84.7)80.5(77.0 to 84.0)80.9(74.7 to 87.2)76.1(69.4 to 82.9)70.0(55.6 to 84.4)79.5(76.8 to 82.1)76.0(73.9 to 78.1)49.3(37.6 to 61.0)
            >Daily21.1(17.6 to 24.6)14.8(12.0 to 17.6)15.5(12.4 to 18.7)14.5(8.9 to 20.1)19.4(13.1 to 25.6)25.0(11.4 to 38.6)13.3(11.1 to 15.5)20.2(18.2 to 22.2)36.6(25.3 to 47.9)
            Daily6.3(4.2 to 8.4)3.6(2.1 to 5.0)4.0(2.3 to 5.7)4.6(1.3 to 8.0)4.5(1.2 to 7.8)5.0(−1.8 to 11.8)7.3(5.6 to 9.0)3.8(2.9 to 4.8)14.1(5.9 to 22.2)
  • CI, confidential interval; PHQ-2, Patient Health Questionnaire.