Table 1.

Baseline demographic and clinical characteristics of the study participants.

	Patients (n = 44)	Siblings (n = 42)	Controls (n = 44)	p-value
Gender (male/female)	28/16	28/14	23/21	0.35
Age (years)	23.45 ± 4.24	23.57 ± 3.62	23.55 ± 2.58	0.99
Education (years)	11.11 ± 2.46	12.13 ± 2.24	11.30 ± 1.67	0.11
FD (mm)	0.03 ± 0.03	0.03 ± 0.01	0.03 ± 0.02	0.34
Illness duration (months)	22.34 ± 7.01
PANSS
Positive symptom score	22.48 ± 5.37
Negative symptom score	22.50 ± 6.38
General symptom score	45.73 ± 6.97
Total score	90.70 ± 11.17

FD, framewise displacement; PANSS, the Positive and Negative Syndrome Scale; Values are expressed as mean ± SD.