From: Cognitive dysfunction in adolescents with substance use disorder
 | Combined alcohol use group | Non-alcohol use group | Mono alcohol use group | Control group | p-Value | ||||
---|---|---|---|---|---|---|---|---|---|
N = 100 | N = 40 | Â | |||||||
N | Mean ± SD | N | Mean ± SD | N | Mean ± SD | N | Mean ± SD |  | |
Number of categories completed | 35 | 3 ± 1 | 56 | 3 ± 1 | 9 | 4 ± 1 | 40 | 5 ± 1 | 0.05* |
Trials to first category | 35 | 32 ± 3 | 56 | 33 ± 4 | 9 | 31 ± 1 | 40 | 20 ± 3 | 0.047* |
Failure to maintain set | 35 | 2 ± 1 | 56 | 2 ± 1 | 9 | 10 | 40 | 1 ± 1 | 0.1 |
Total number of errors | 35 | 58 ± 14 | 56 | 64 ± 15 | 9 | 44 ± 2 | 40 | 34 ± 4 | 0.038* |
Number of perseverative errors | 35 | 28 ± 7 | 56 | 24 ± 9 | 9 | 32 ± 2 | 40 | 18 ± 3 | 0.029* |
Number of perseverative responses | 35 | 43 ± 4 | 56 | 45 ± 5 | 9 | 42 ± 2 | 40 | 26 ± 4 | 0.7 |
Number of non-perseverative errors | 35 | 25 ± 8 | 56 | 31 ± 6 | 9 | 21 ± 4 | 40 | 16 ± 5 | 0.6 |