Cognitive dysfunction in adolescents with substance use disorder

Middle East Current Psychiatry

Table 3 Comparison between mono and polysubstance use groups with control group regarding WCST domains

	Mono		Poly		Control group		p-Value
	N = 100				N = 40
	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD
Number of categories completed	15	3 ± 1	85	2 ± 1	40	5 ± 1	0.043*
Trials to first category	15	31 ± 2	85	35 ± 4	40	20 ± 3	0.039*
Failure to maintain set	15	10	85	2 ± 1	40	1 ± 1
Total number of errors	15	43 ± 2	85	63 ± 14	40	34 ± 4	0.047*
Number of perseverative errors	15	*22 ± 2**	85	34 ± 8	40	18 ± 3	0.003**
Number of perseverative responses	15	42 ± 3	85	44 ± 5	40	26 ± 4	0.05*
Number of non-perseverative errors	15	21 ± 3	85	29 ± 7	40	16 ± 5	0.042*

*p-value < 0.05 significance. **p-value < 0.01 significance. Shows that mono and polysubstance case groups had lower mean than control group as regard number of category completed and higher mean than control group as regard other WCST domains; the difference between mono and polysubstance users’ cases and control groups had statistically critical (p = 0.05). Polysubstance use case group shows higher mean than mono substance use group as regard number of perseverative errors; the difference between two groups had statistically critical (p = 0.003). Polysubstance use case groups show higher mean than mono substance use group as regard failure to maintain set, but the difference between two groups had not statistically critical