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Table 1 Socio-demographic variables.

From: P300 amplitude is insensitive to working memory load in schizophrenia

Variable

Healthy Controls

Schizophrenic Patients

 

n = 13

n = 13

Age (y), mean (SD)

31.2 (12.1)

30.3 (10.6)

Sex, n (%) male

9 (69.2)

10 (76.9)

Symptom severity scale (PANSS)

  

(30-210), score (SD)

  

Negative scale

-

20.8 (6.59)

Positive scale

-

14.5 (4.84)

General psychopathology

-

36.4 (12.1)

Total score

-

71.7 (20)

Clinical rated CGI severity score (CGI-s)

  

(1-7), score (SD)

-

4(6.4)

Socio economic scale, level, n (%)

  

High

4 (30.8)

3 (23.1)

Medium

9 (69.2)

10 (76.9)

Low

0

0

Years of treatment

  

mean (SD)

-

12.9 (11.4)

Chlorpromazine equivalent

  

doses mg/day

-

419.2 (186.5)

Antipsychotic treatment n (%)

  

First generation

-

12 (92.3)

Second generation

-

1 (7)

  1. Socio economic scale includes: education, employment status, family economic status and graduate living conditions.