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Table 1 Descriptive characteristics of the study group

From: Comparison of frontal alpha asymmetry among schizophrenia patients, major depressive disorder patients, and healthy controls

Variable

MDD (a) (n = 20)

Schizophrenia (b) (n = 18)

Control (c) (n = 16)

Statistics

Age (years)

42.60 ± 11.48

32.00 ± 10.45

37.75 ± 9.78

f = 4.68; p = 0.014; a > b

Sex (male/female), n/n

9/11

9/9

8/8

χ2 = 0.13, p = 0.939

HAM-D

23.70 ± 4.86

–

–

–

HAM-A

20.45 ± 7.39

–

–

–

PANSS-Positive

–

30.33 ± 5.34

–

–

PANSS-Negative

–

17.67 ± 6.05

–

–

PANSS-General

–

52.78 ± 8.62

–

–

PANSS-Total

–

100.78 ± 11.70

–

–

  1. Data presented as mean ± SD unless otherwise indicated
  2. MDD Major depressive disorder, HAM-D Hamilton-Depression scale, HAM-A Hamilton Anxiety scale, PANSS Positive and Negative Syndrome Scale