Table 4 Alcohol and other illicit drug use within-group differences and 12 months follow-up or at the end of the programme if completed earlier (T1) compared to baseline (T0)
Outcome measures | T0 (N = 30) | T1 (N = 30) | Test | p-value |
|---|---|---|---|---|
Alcohol use during the last 30 days | ||||
% Consumers (n) | 86.2% (25) | 68.9% (20) | a | .125 |
Alcohol units per drinking day (mean ± SD) | 12.26 ± 11.61 | 5.48 ± 8.53 | F(1,26) = 8.246 | .008 |
At least one episode of heavy alcohol use % (n) | 71.4% (20) | 32.1% (9) | a | .001 |
Frequency % (n) | ||||
Almost every day | 51.7% (15) | 27.6% (8) | z = −2.721b | .007 |
3–4 days per week | 10.3% (3) | 6.9% (2) | ||
1–2 days per week | 20.7% (6) | 13.8% (4) | ||
1–3 days per month | 3.5% (1) | 20.7% (6) | ||
none | 13.8% (4) | 31.0% (9) | ||
Other illicit drug use during the last 30 days | ||||
% Consumers (n) | 68.9% (20) | 44.8% (13) | a | .016 |
Frequency % (n) | ||||
Almost every day | 27.6% (8) | 6.9%(2) | z = −3.064b | .002 |
3–4 days per week | 3.5% (1) | 6.9% (2) | ||
1–2 days per week | 20.7% (6) | 6.9% (2) | ||
1–3 days per month | 17.2% (5) | 24.1% (7) | ||
none | 31.0% (9) | 55.2% (16) | ||