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Table 4 Comparing the strength of correlation of depersonalization severity with anxiety, depression, somatization and general distress

From: A case series of 223 patients with depersonalization-derealization syndrome

  Pearson correlation of the CDS-2 score Comparison of the correlation coefficients by Fisher r-to-z transformation
  DDS (n = 223) Only Depressed Group (n = 1129)
Severity of anxiety (GAD-7) r = 0.24*** r = 0.41*** z = -2.57, p = 0.0102
Severity of social anxiety (Mini-spin) r = 0.11, n.s. r = 0.35** z = - -3.46, p = 0.0005
Severity of depression (PHQ-9) r = 0.25*** r = 0.46*** z = -3.25, p = 0.0012
Severity of somatization (PHQ-15) r = 0.01, n.s. r = 0.26*** z = -3.44, p = 0.0006
Severity of general distress (GSI) r = 0.27*** r = 0.47*** z = -3.14, p = 0.0017
  1. DDS, patients with depersonalization-derealization syndrome; Fisher r-to-z transformation: Negative z indicates that the correlation coefficient in the DDS group is significantly weaker than that in the ODG; ***, p < 0.0001; n.s., not significant; **, p < 0.001