. Author manuscript; available in PMC: 2016 Jan 1.

Published in final edited form as: Schizophr Res. 2014 Oct 30;161(1):70–75. doi: 10.1016/j.schres.2014.09.045

Table 1.

Demographic and clinical characteristics.

	Schizophrenia	First-degree relatives	Healthy controls	Statistics	Significance
Age
Mean ± SD	26.83 ± 8.53	22.95 ± 4.10	27.14 ± 6.75	F_(2,88) = 2.56	0.084
Min-Max	18.21-50.38	18.44-34.07	18.05-42.10
Median	24.87	21.79	26.12
Sex
Male	22	2	9	χ² = 13.54	0.001
Female	17	19	20
Duration of illness
From first psychotic symptom	3.35 ± 2.84 years	-	-