Reported past 3-month drug use | Total drug use including marijuana, n=1030 | Total drug use excluding marijuana, n=494 |
Any past 3 months drug use | % (95% CI) | % (95% CI) |
Treatment arm | 100.0 (100.0 to 100.0) | 46.9 (42.5 to 51.3) |
Control arm | 100.0 (100.0 to 100.0) | 49.0 (44.6 to 53.4) |
Mean (95% CI) | Mean (95% CI) | |
Frequency of drug use in the past 3 months | ||
Treatment arm | 7.3 (6.7 to 7.9) | 3.6 (3.0 to 4.2) |
Control arm | 7.4 (6.9 to 7.9) | 3.7 (3.3 to 4.1) |
Days of drug use in the past 3 months | ||
Treatment arm | 50.5 (45.7 to 55.4) | 18.9 (15.1 to 22.7) |
Control arm | 50.2 (45.7 to 54.7) | 18.1 (14.6 to 21.5) |
Typical times/day of drug use in the past 3 months | ||
Treatment arm | 7.9 (6.7 to 9.2) | 4.7 (3.6 to 5.8) |
Control arm | 7.1 (6.0 to 8.1) | 3.8 (3.0 to 4.6) |
Most times/day of drug use in the past 3 months | ||
Treatment arm | 11.5 (10.0 to 13.0) | 6.4 (5.1 to 7.8) |
Control arm | 11.5 (9.9 to 13.2) | 6.4 (5.0 to 7.8) |
Frequency of drug use was reported on a five-point response scale that ranged from no drug use to near-daily/daily drug use (5–7 days/week) in the past 3 months.