Validity and reliability of the Japanese version of the painDETECT questionnaire: a multicenter observational study

Yoshitaka Matsubayashi; Katsushi Takeshita; Masahiko Sumitani; Yasushi Oshima; Juichi Tonosu; So Kato; Junichi Ohya; Takeshi Oichi; Naoki Okamoto; Sakae Tanaka

doi:10.1371/journal.pone.0068013

Validity and reliability of the Japanese version of the painDETECT questionnaire: a multicenter observational study

PLoS One. 2013 Sep 30;8(9):e68013. doi: 10.1371/journal.pone.0068013. eCollection 2013.

Authors

Yoshitaka Matsubayashi¹, Katsushi Takeshita, Masahiko Sumitani, Yasushi Oshima, Juichi Tonosu, So Kato, Junichi Ohya, Takeshi Oichi, Naoki Okamoto, Sakae Tanaka

Affiliation

¹ Department of Orthopaedic Surgery, Faculty of Medicine, the University of Tokyo, Tokyo, Japan.

Abstract

Objectives: The aim of this study was to evaluate the validity and reliability of the Japanese version of the painDETECT questionnaire (PDQ-J).

Materials and methods: The translation of the original PDQ into Japanese was achieved according to the published guidelines. Subsequently, a multicenter observational study was performed to evaluate the validity and reliability of PDQ-J, including 113 Japanese patients suffering from pain.

Results: Factor analysis revealed that the main component of PDQ-J comprises two determinative factors, which account for 62% of the variance observed. Moreover, PDQ-J revealed statistically significant correlation with the intensity of pain (Numerical Rating Scale), Physical Component Score, and Mental Component Score of the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). The Cronbach alpha for the total score was 0.78 and for the main component was 0.80. In the analysis of test-retest method, the intraclass correlation coefficient between the two scores was 0.94.

Conclusions: We demonstrated the validity and reliability of PDQ-J. We encourage researchers and clinicians to use this tool for the assessment of patients who suffer suspected neuropathic pain.

Publication types

Evaluation Study
Multicenter Study
Observational Study
Research Support, Non-U.S. Gov't

MeSH terms

Diagnostic Self Evaluation
Factor Analysis, Statistical
Humans
Japan
Neuralgia / diagnosis*
Pain Measurement / standards*
Reproducibility of Results
Surveys and Questionnaires / standards*

Grants and funding

This study received financial funds from the “Health and Labour Sciences Research Grant.” The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.