Table 1.

Demographic and clinical characteristics of the participants in each group.

Characteristic	Schizophrenia group	Healthy control group	p
	n = 33	n = 34
	Mean (SD)	Mean (SD)
Age (years)	30.60 (8.13)	28.12 (6.5)	0.171
Sex (male/female)	11/22	14/20	0.51
Education (years)	12.36 (2.68)	12.74 (3.79)	0.686
Age at disease onset (years)	26.21 (8.242)	NA
Length of illness (years)	4.74 (2.52)	NA
PANSS score
Total	78.36 (7.95)	NA
Positive	25.61 (3.41)	NA
Negative	17.15 (2.81)	NA
General	35.60 (4.15)	NA
Digit coding task	41 (13.1)	64.9 (11.9)	0.00

PANSS, Positive and Negative Symptom Scale.