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Table 5 Correlation matrices for the construct validation of the Japanese version of the VSI

From: Gastrointestinal specific anxiety in irritable bowel syndrome: validation of the Japanese version of the visceral sensitivity index for university students

  VSI ASI HAD-ANX HAD-DEP
All (N= 349)     
ASI 0.46** - - -
HAD-ANX 0.19** 0.30** - -
HAD-DEP 0.10 0.17** 0.53** -
IBS-SI 0.43** 0.24* 0.09 0.09
IBS + ( N = 39)     
ASI 0.44** - - -
HAD-ANX 0.32* 0.57** - -
HAD-DEP 0.27 0.47** 0.60** -
IBS-SI 0.65** 0.50** 0.30 0.24
Non-IBS ( N = 310)     
ASI 0.41** - - -
HAD-ANX 0.16** 0.24** - -
HAD-DEP 0.09 0.13* 0.52** -
IBS-SI 0.36** 0.14* 0.04 0.09
  1. Abbreviations: VSI Visceral Sensitivity Index, ASI Anxiety Sensitivity Index, HAD-ANX and HAD-DEP subscales of the Hospital Anxiety and Depression scale, IBS-SI Irritable Bowel Syndrome Severity Index.
  2. *p < 0.05, **p < 0.01.