Table 1. Demographic and clinical characteristics of the study sample.

	Short-DUP(≤26 weeks)	Long-DUP(>26 weeks)	Healthy Controls	F/χ2	p
Age (years)	25.1(6.3)	25.7(6.7)	25.6 (6.7)	0.065	0.937
Gender (M/F)	16/11	16/14	16/14	0.264	0.876
Education (years)	11.3 (2.3)	12.1(2.9)	12.2(1.9)	0.996	0.374
DUP (weeks)	7.1 (1.4)	60.2 (11.0)	-	66.113	<0.001
PANSS positive scores	24.3 (4.9)	23.0 (6.3)	-	0.490	0.487
PANSS negative scores	13.8 (4.9)	16.0 (6.9)	-	2.165	0.147
PANSS total scores	73.7 (8.1)	75.3 (11.9)	-	1.642	0.205

Abbreviations: DUP = duration of untreated psychosis, PANSS =  the Positive and Negative Syndrome Scale, values are expressed as mean (SD).