Table 1 Demographic and clinical characteristics of subjects for each gender

From: Altered sulcogyral patterns of orbitofrontal cortex in a large cohort of patients with schizophrenia

 

Healthy Subjects

Patients with Schizophrenia

t or χ2

p

Male subjects

N = 185

N = 94

  

Age (years)

36.3 ± 13.0

34.3 ± 10.9

1.9

0.22

Education (years)

15.4 ± 2.3

14.4 ± 2.6

3.4

0.01

IQ

111.8 ± 12.1 (N = 181)

88.6 ± 18.1 (N = 81)

12.0

<0.001

Handedness (right/left)

171/14

88/6

0.1

0.81

Onset (years)

 

23.7 ± 8.3

  

Duration of illness (years)

 

10.6 ± 8.8

  

PANSS positive

 

14.5 ± 5.1 (N = 92)

  

PANSS negative

 

18.7 ± 5.6 (N = 92)

  

Chlorpromazine equivalent dose (mg)

 

580.8 ± 554.2

  

Female subjects

N = 190

N = 61

  

Age (years)

36.8 ± 12.6

37.9 ± 13.0

−0.6

0.59

Education (years)

14.6 ± 2.2

13.7 ± 2.2

2.6

0.01

IQ

108.2 ± 12.2 (N = 187)

83.3 ± 16.3 (N = 45)

11.5

<0.001

Handedness (right/left)

182/8

59/2

0.1

1.00

Onset (years)

 

24.7 ± 10.2

  

Duration of illness (years)

 

13.1 ± 9.9

  

PANSS positive

 

14.3 ± 4.6 (N = 58)

  

PANSS negative

 

16.3 ± 5.8 (N = 58)

  

Chlorpromazine equivalent dose (mg)

 

637.2 ± 604.5