Table 1 Demographics of participants

From: Electrophysiological evidence for abnormal glutamate-GABA association following psychosis onset

 

ROSZ

UHR

HC

Statistics

N (sex ratio M/F)a

21 (11/10)

27 (14/13)

24 (10/14)

χ2 = 0.696, df = 2, p = 0.706

Age (years)b

24.0 (6.7)

20.6 (3.9)

22.3 (3.0)

F2,69 = 3.04, p = 0.054

Education (year)b

13.4 (2.5)

13.1 (2.6)

14.5 (1.6)

F2,69 = 2.29, p = 0.109

Premorbid IQb

104 (9.0)

105 (8.1)

110 (6.4)

F2,69 = 3.03, p = 0.055

DOI (weeks)

46.5 (47.0)

   

PANSSc total

68.9 (19.6)

67.7 (14.3)

 

t46 = 0.238, p = 0.813

Positive

15.2 (5.3)

14.3 (3.7)

 

t46 = 0.684, p = 0.497

Negative

18.8 (7.0)

17.3 (4.7)

 

t46 = 0.874, p = 0.387

General

34.9 (10.0)

36.1 (8.0)

 

t46 = –0.466, p = 0.643

GAF scorec

38 (11)

48 (10)

 

t46 = –3.35, p = 0.002

Antipsychotic dose (mg/day)c

388 (284)

174 (262)

 

t46 = 2.70, p = 0.010

  1. All values are shown as mean (standard deviation) except for the first row. Underlined results indicate p < 0.05
  2. ROSZ recent-onset schizophrenia, UHR ultra-high risk, HC healthy control, IQ intelligence quotient, DOI duration of illness, PANSS positive and negative symptom scale, GAF global assessment of functioning, ANOVA analysis of variance, df degrees of freedom
  3. aChi-square test
  4. bOne-way ANOVA
  5. cIndependent t-test