Table 1.

Sociodemographic characteristics of the patients and their siblings

Variable	Schizophrenia patients (N=36)	Healthy siblings (N=36)	p
Age (yr)	29.5 (25.25–37.0)	26.0 (21.25–37.5)	0.191
Gender, male	24 (66.7)	18 (50.0)	0.151
Education time (yr)	8.0 (5.25–11.0)	11.5 (8.0–13.75)	0.052
BMI (kg/m2)	26.16 (22.11–29.22)	22.31 (20.50–26.55)	0.018
Smoking status, active smoker	19 (52.8)	13 (36.1)	0.155
Working status, working	7 (19.4)	16 (44.4)	0.023

Values are presented as median (Q1–Q3) or number (%). Two groups compared using Mann-Whitney U test for numerical variables and using Pearson chi-square test for categorical variables. BMI, body mass index