| Problem drinking | Problem drug use |
---|
Round 1 | 21 | 21 |
Round 2 | 19 | 21 |
Round 3 | 19 | n/a* |
- * Only two rounds were completed in the problem drug use study as none of the first aid action statements, which were rated for the first time in round 2, fell into the re-rate category prompting a third and final round.