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Published in: BioPsychoSocial Medicine 1/2014

Open Access 01-12-2014 | Research

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

Authors: Tatsuo Saigo, Jun Tayama, Toyohiro Hamaguchi, Naoki Nakaya, Tadaaki Tomiie, Peter J Bernick, Motoyori Kanazawa, Jennifer S Labus, Bruce D Naliboff, Susumu Shirabe, Shin Fukudo

Published in: BioPsychoSocial Medicine | Issue 1/2014

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Abstract

Objective

The visceral sensitivity index (VSI) is a useful self-report measure of the gastrointestinal symptom-specific anxiety (GSA) of patients with irritable bowel syndrome (IBS). Previous research has shown that worsening GSA in IBS patients is related to the severity of GI symptoms, suggesting that GSA is an important endpoint for intervention. However, there is currently no Japanese version of the VSI. We therefore translated the VSI into Japanese (VSI-J) and verified its reliability and validity.

Material and methods

Participants were 349 university students aged 18 and 19 years and recruited from an academic class. We analyzed data from the VSI-J, Anxiety Sensitivity Index (ASI), Hospital Anxiety and Depression scale (HAD), and Irritable Bowel Syndrome Severity Index (IBS-SI). The internal consistency, stability, and factor structure of the VSI-J and its associations with anxiety, depression and severity measures were investigated.

Results

The factor structure of the VSI-J is unidimensional and similar to that of the original VSI (Cronbach’s α = 0.93). Construct validity was demonstrated by significant correlations with ASI (r = 0.43, p < 0.0001), HAD-ANX (r = 0.19, p = 0.0003), and IBS-SI scores (r = 0.45, p < 0.0001). Furthermore, the VSI-J was a significant predictor of severity scores on the IBS-SI and demonstrated good discriminant (p < 0.0001) and incremental (p < 0.0001) validity.

Conclusion

These findings suggest that the VSI-J is a reliable and valid measure of visceral sensitivity.
Appendix
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Metadata
Title
Gastrointestinal specific anxiety in irritable bowel syndrome: validation of the Japanese version of the visceral sensitivity index for university students
Authors
Tatsuo Saigo
Jun Tayama
Toyohiro Hamaguchi
Naoki Nakaya
Tadaaki Tomiie
Peter J Bernick
Motoyori Kanazawa
Jennifer S Labus
Bruce D Naliboff
Susumu Shirabe
Shin Fukudo
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BioPsychoSocial Medicine / Issue 1/2014
Electronic ISSN: 1751-0759
DOI
https://doi.org/10.1186/1751-0759-8-10

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