Table 1.

Demographic and clinical characteristics (p-values represent the significance of the performed Kruskal–Wallis tests between groups, except gender, and education, which were tested with chi-square tests).

	Controls	Negative symptomatic sub-group	Positive symptomatic sub-group	p-values
N	10	10	10
Age	33.50 ± 2.87	31.60 ± 2.59	32.80 ± 2.43	p = 0.925
Gender (male/female)	6/10	7/10	8/10	p = 0.621
PANSS overall	–	78.66 ± 23.91	77.11 ± 20.91	p = 0.880
PANSS neg.sympt.	–	24.67 ± 3.03	14.56 ± 1.51	p = 0.015
PANSS pos.sympt.	–	16.67 ± 2.12	21.67 ± 2.78	p = 0.138
Education				p = 0.312
Higher degree	3	3	0
A-levels	5	4	3
Apprenticeship/professional school	1	1	3
Elementary school	1	2	4
Colrpromazine (mg/day)	–	321.67 ± 257.92	806.68 ± 326.87	p = 0.002