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. 2021 Apr 21;11(5):327. doi: 10.3390/jpm11050327

Table 3.

Correlations between P300 parameters and clinical symptoms.

Entire Subject a ARMS (n = 33) Schizophrenia (n = 39)
Amplitude (µV) Latency (msec) Amplitude (µV) Latency (msec) Amplitude (µV) Latency (msec)
rs p rs p rs p rs p rs p rs p
JART −0.03 0.77 0.08 0.44 −0.08 0.65 0.07 0.71 0.10 0.56 0.01 0.95
PANSS: positive symptom −0.15 0.20 0.02 0.86 −0.08 0.68 0.05 0.78 0.12 0.47 −0.11 0.50
negative symptom −0.19 0.12 0.21 0.09 −0.30 0.09 0.15 0.41 −0.28 0.10 0.31 0.06
general psychopathology −0.22 0.07 0.08 0.51 −0.08 0.68 0.17 0.34 −0.34 0.04 * −0.022 0.90
mGAF 0.46 0.003 ** −0.14 0.29 0.48 0.02 * 0.09 0.67 0.14 0.46 −0.095 0.61
SCoRS −0.22 0.07 0.17 0.16 −0.11 0.54 0.16 0.36 −0.17 0.33 0.11 0.52
BACS: verbal memory 0.25 0.01 −0.10 0.35 0.02 0.65 −0.02 0.92 0.31 0.06 −0.04 0.80
working memory 0.21 0.04 −0.19 0.06 −0.21 0.23 −0.15 0.40 0.28 0.10 −0.12 0.48
motor function 0.41 <0.001 b −0.22 0.04 0.03 0.86 −0.28 0.10 0.27 0.10 −0.14 0.54
verbal fluency 0.28 0.007 −0.24 0.02 −0.03 0.87 −0.17 0.34 0.17 0.31 −0.85 0.62
attention 0.50 <0.001 b −0.33 0.001 b 0.06 0.74 −0.16 0.36 0.43 0.01 −0.24 0.14
executive function 0.36 0.003 b −0.15 0.14 0.06 0.74 −0.002 0.99 0.37 0.03 −0.20 0.22
BACS composite score 0.43 <0.001 ** −0.28 0.006 * 0.01 0.95 −0.22 0.20 0.34 0.04 * −0.16 0.33

Data were calculated by Spearman’s rank correlation (* p < 0.05, ** p < 0.01). a “Entire subject” means schizophrenia, ARMS, and healthy control (n = 100). As shown in Table 1, PANSS, mGAF and SCoRS were measured only in ARMS and schizophrenia patients (n = 72). b BACS subdomains survived after Bonferroni’s correction for multiple comparison.