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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 variablesSSD (n = 47)BP (n = 41)MDD (n = 20)Controls (n = 50)P value
Mean±SDMean±SDMean±SDMean±SD
P300 amplitude6.32#± 2.68.97#± 3.3612.59#± 5.4121.57± 5.871 = 0.006*
2 = 0.001*
3 = 0.003*
P300 latency367.77#± 22.4343.14#± 22.21340.97#± 22.54326.11± 15.781 = 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