Table 1 Demographic and clinical data of first-episode psychosis (FEP) and healthy control (HC) groups.

Age

26.77 (10.42)

24.90 (7.10)

1751.5

.13

BMI

22.65 (4.63)

22.75 (3.13)

1477

.89

Waist circumference

80.00 (15.13)

77.50 (16.50)

1702

.23

BPRS (N = 59)

46.50 (27.00)

GAF (N = 59)

30 (10)

%

%

χ²

p

Sex (female)

46.67

52

0.14

0.71

Alcohol frequency

None

15

16

6.04

0.18

<once a month

40

60

2–4 times a month

33.33

18

2–3 times a week

10

6

>3 times a week

1.67

0

Cannabis use

Never

66.67

92

12.04

.005

Once

5

4

A few times

18.33

4

Often in the past

3.33

0

Regularly

6.67

0

Smoking

Never

55

76

6.19

.04

In the past

10

2

Current

35

22

e-cigarette

0

0

CGI (N = 59)

Moderately ill

10

Markedly ill

26.67

Severely ill

58.34

Among the most extremely ill

3.34

ICD diagnosis

F20.0 (paranoid schizophrenia)

23.33

F20.3 (undifferentiated schizophrenia)

3.33

F21 (schizotypal disorder)

1.67

F23.0 (acute polymorphic psychotic disorder without symptoms of schizophrenia)

23.33

F23.1 (acute polymorphic psychotic disorder with symptoms of schizophrenia)

16.67

F23.2 (acute schizophrenia-like psychotic disorder)

25.00

F23.3 (other acute predominantly delusional psychotic disorders)

6.67