Table 2.
Past 90-day other drug use by MCP transition group at each wave among young adult cannabis users in Los Angeles (n=301).
| Total n=301 %(n) |
MCP n=85 %(n) |
Into MCP n=30 %(n) |
Out of MCP n=94 %(n) |
NPU n=92 %(n) |
|
|---|---|---|---|---|---|
| Illicit drug use | |||||
| Wave 1 | 31.9(96) | 35.3(30) | 40.0(12) | 34.0(32) | 23.9(22) |
| Wave 2 | 33.2(100) | 27.1(23) | 43.3(13) | 38.3(36) | 30.4(28) |
| Wave 3 | 30.2(91) | 29.4(25) | 30.0(9) | 37.2(35) | 23.9(22) |
| Wave 4 | 25.2(76) | 21.2(18) | 40.0(12) | 29.8(28) | 19.6(18) |
| Rx drug misuse | |||||
| Wave 1 | 23.3(70) | 18.8(16) | 33.3(10) | 24.5(23) | 22.8(21) |
| Wave 2 | 18.6(56) | 17.6(15) | 26.7(8) | 21.3(20) | 14.1(13) |
| Wave 3 | 17.9(54) | 16.5(14) | 26.7(8) | 19.1(18) | 15.2(14) |
| Wave 4 | 15.6(47) | 10.6(9) | 16.7(5) | 20.2(19) | 15.2(14) |
| Polydrug use 1,2 | |||||
| Wave 1 | 25.9(78) | 27.1(23) | 40.0(12) | 24.5(23) | 21.7(20) |
| Wave 2 | 26.3(76) | 28.2(24) | 30.0(9) | 29.9(26) | 19.5(17) |
| Wave 3 | 27.0(74) | 28.6(24) | 33.3(10) | 35.4(29) | 14.1(11) |
|
DAST3 (mean, SD) |
|||||
| Wave 2 | 2.2(2.1) 3.0 | 2.1(2.0) | 2.5(2.4) | 2.2(2.1) | 2.3(2.2) |
| Wave 3 | 2.2(2.3) 2.9 | 2.2(2.2) | 2.4(2.4) | 2.5(2.3) | 1.9(2.2) |
| Wave 4 | 1.8(2.2) 2.7 | 1.6(1.9) | 2.5(2.8) | 2.0(2.4) | 1.5(2.1) |
|
SMAST3 (mean, SD) |
|||||
| Wave 2 | 1.8(1.7) 1.8 | 1.9(1.9) | 2.0(1.7) | 1.6(1.6) | 1.9(1.6) |
| Wave 3 | 2.0(2.1) 2.0 | 2.0(2.0) | 2.4(2.2) | 1.9(2.5) | 2.0(1.8) |
| Wave 4 | 2.1(2.4) 2.4 | 1.9(2.0) | 2.2(2.3) | 2.1(2.5) | 2.3(2.6) |
| Alcohol | |||||
| Wave 1 | 81.4(245) | 84.7(72) | 83.3(25) | 85.1(80) | 73.9(68) |
| Wave 2 | 79.7(240) | 76.5(65) | 80.0(24) | 87.2(82) | 75.0(69) |
| Wave 3 | 75.7(228) | 76.5(65) | 66.7(20) | 79.8(75) | 73.9(68) |
| Wave 4 | 52.8(158) | 56.0(47) | 53.3(16) | 53.8(50) | 48.9(45) |
| Cigarettes | |||||
| Wave 1 | 45.8(138) | 44.7(38) | 50.0(15) | 45.7(43) | 45.7(42) |
| Wave 2 | 45.8(138) | 38.8(33) | 53.3(16) | 47.9(45) | 47.8(44) |
| Wave 3 | 40.2(121) | 40.0(34) | 36.7(11) | 45.7(43) | 35.9(33) |
| Wave 4 | 34.7(104) | 34.1(29) | 48.3(14) | 37.2(35) | 28.3(26) |
| E-cigarettes | |||||
| Wave 1 | 29.9(90) | 30.6(26) | 46.7(14) | 33.0(31) | 20.7(19) |
| Wave 2 | 19.7(59) | 10.7(9) | 26.7(8) | 27.7(6) | 17.4(16) |
| Wave 3 | 14.7(44) | 7.1(6) | 20.0(6) | 22.3(21) | 12.0(11) |
| Wave 4 | 12.3(37) | 12.9(11) | 13.3(4) | 16.0(15) | 7.7(7) |
1
Past 90-day cannabis users.
2
Outcome was not assessed in wave 4.
3
Outcomes were not assessed in wave 1.
MCP – medical cannabis patients; NPU – non-patient users; DAST – Drug Abuse Screening Test; SMAST – Short Michigan Alcohol Screening Test.