PLoS ONE (Jan 2013)

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
https://doi.org/10.1371/journal.pone.0068013
Journal volume & issue
Vol. 8, no. 9
p. e68013

Abstract

Read online

ObjectivesThe aim of this study was to evaluate the validity and reliability of the Japanese version of the painDETECT questionnaire (PDQ-J).Materials and methodsThe 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.ResultsFactor 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.ConclusionsWe 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.