Table 1 Demographic variables and clinical characteristics of adolescent-onset and adult-onset antipsychotic-naïve, first-episode schizophrenia patients and healthy control subjects.

From: Differential Cortical Gray Matter Deficits in Adolescent- and Adult-Onset First-Episode Treatment-Naïve Patients with Schizophrenia

Characteristic

Adolescent participants

P

Adult participants

P

FES group

Healthy group

comparison

FES group

Healthy group

comparison

(N = 26)

(N = 26)

t/χ 2

(N = 49)

(N = 57)

t/χ 2

Age (years); mean (SD)

16.87(1.05)

16.81(0.75)

0.12

0.22

32.88(5.94)

32.88(6.26)

0.03

0.86

Education (years); mean (SD)

10.35(1.38)

11.19(1.02)

5.81

0.02

12.33(4.12)

13.02(4.21)

0.01

0.87

Sex (male: female)

13:13

13:13

0

1

20:29

26:31

0.03

0.62

TMV; mean (SD)

1,254.50 (137.15)

1,262.87 (85.69)

−0.26

0.79

1,166.91 (105.73)

1,214.48 (109.84)

−2.26

0.03

Illness duration (months); mean (SD)

3.61(3.50)

   

4.85(7.29)

   

Age onset (years); mean (SD)

16.51(1.01)

   

32.48(5.83)

   

Global assessment function; mean (SD)

27.96(8.19)

   

27.31(8.17)

   

PANSS scores; mean (SD)

Total

93.42(16.43)

   

89.22(17.15)

   

Negative

20.46(8.19)

   

16.7(6.38)

   

Positive

25.12(4.92)

   

25.89(5.85)

   

General

47.85(9.88)

   

46.63(9.89)

   

Thought disturbance

13.65(3.74)

   

14.11(3.59)

   

Activation

9.12(2.86)

   

9.43(3.77)

   

Paranoid

10.62(2.00)

   

11.04(2.92)

   

Impulsive aggression

16.85(5.14)

   

16.28(4.67)

   

Anergia

9.77(4.88)

   

7.87(3.46)

   

Depression

9.15(3.94)

   

8.74(4.16)

   
  1. Notes: PANSS, Positive and Negative Syndrome Scale; FES, antipsychotic-naive first-episode schizophrenia; TMV, total gray and white matter volume.