Assessment of nerve growth factor levels and clinical indicators for outcome prediction in first-episode schizophrenia

Table 1 Demographic data and clinical characteristics of the study subjects, n (%)

	FEP group (n = 78)	HC group (n = 75)	χ2/t	P value
Gender (male/female)	40/38	42/33	0.342	0.559
Age (years)	26.03 (6.45)	26.51 (6.30)	-0.470	0.636
Education (years)	12.01 (3.18)	12.51 (3.85)	-0.870	0.382
Body mass index	22.42 (6.05)	22.46 (5.49)	-0.043	0.966
Smokers (yes/no)	28/50	33/42	1.050	0.306
Age of onset (years)	24.29 (5.27)
Duration of illness (years)	1.82 (2.14)
Family history of mental disorders (yes/no)	18/60
PANSS at baseline
Positive subscale	24.24 (8.47)
Negative subscale	21.42 (8.03)
General subscale	33.42 (3.59)
Total	79.09 (5.04)
PANSS after treatment
Positive subscale	16.09 (5.61)
Negative subscale	13.27 (4.28)
General subscale	20.08 (6.72)
Total	49.44 (11.78)

FEP: Never-medicated first-episode psychosis; HC: Healthy control; PANSS: Positive and Negative Syndrome Scale.