Placebo (N = 40) | OROS-MPH (N = 40) | ||
---|---|---|---|
Week | No. (%) | No. (%) | p† |
Week 12 (end of medication) | |||
7-day point prevalence* | 4 (10.0) | 1 (2.5) | 0.973 |
Prolonged abstinence | 4 (10.0) | 1 (2.5) | 0.973 |
Week 24 | |||
7-day point prevalence* | 3 (7.5) | 4 (10.0) | 0.500 |
Prolonged abstinence | 1 (2.5) | 1 (2.5) | 0.753 |