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Table 3 Comparison of P300 variables among first-episode psychosis diagnostic groups and control

From: P300 cognitive assessment in patients with first-episode psychosis: a prospective case-control study

P300 variables

SSD (n = 47)

BP (n = 41)

MDD (n = 20)

Controls (n = 50)

P value

Mean

±SD

Mean

±SD

Mean

±SD

Mean

±SD

P300 amplitude

6.32#

± 2.6

8.97#

± 3.36

12.59#

± 5.41

21.57

± 5.87

1 = 0.006*

2 = 0.001*

3 = 0.003*

P300 latency

367.77#

± 22.4

343.14#

± 22.21

340.97#

± 22.54

326.11

± 15.78

1 = 0.001*

2 = 0.001*

3 = 0.699

  1. *P value by one-way ANOVA, post hoc tests were used to compare pairwise group difference when P < 0.05, post hoc in between groups (1 = SSD and BP, 2 = SSD and MDD, 3 = BP and MDD)
  2. #Significant difference among patient diagnostic groups and control