title: Validity, reliability, and assessment sensitivity of the Japanese version of the short-form McGill pain questionnaire 2 in Japanese patients with neuropathic and non-neuropathic pain.
abstract: OBJECTIVE
  The objective of this study was to define the validity, reliability, and assessment sensitivity of the Japanese version of the Short-Form McGill Pain Questionnaire 2 (SF-MPQ-2-J).
  
  
  METHODS
  This is a cross-sectional study.
  
  
  METHODS
  The original SF-MPQ-2 was translated into Japanese to create the SF-MPQ-2-J, and the cross-cultural equivalence of assessment tool for Japanese patients was validated. The reliability of the SF-MPQ-2-J was assessed using internal consistency, reliability coefficients (Cronbach's α), and reproducibility coefficients (intraclass correlation coefficient) obtained using 234 patients with chronic pain. SF-MPQ-2-J validity was assessed based on associations identified between total and subscale scores compared with other assessment methods. A confirmatory factor analysis (CFA) was also performed to test the theoretical structure of the SF-MPQ-2-J.
  
  
  RESULTS
  The internal consistencies calculated included continuous pain, α=0.893; intermittent pain, α=0.875; predominantly neuropathic pain, α=0.917; affective descriptors, α=0.857; and total score, α=0.907. The reproducibility coefficients calculated included continuous pain, ρ=0.81; intermittent pain, ρ=0.78; predominantly neuropathic pain, ρ=0.85; affective descriptors, ρ=0.75; and total score, ρ=0.83. The CFA showed that the model fit of the readily interpretable subscales was acceptable, and the goodness of fit index value was 0.917. In addition, the mean predominantly neuropathic pain subscale score was found to be significantly higher for patients with neuropathic pain vs non-neuropathic pain.
  
  
  CONCLUSIONS
  These findings suggest that the reliability and validity of the SF-MPQ-2-J are excellent, and the SF-MPQ-2-J represents a cross-cultural equivalent to SF-MPQ-2. Consequently, the latter is suitable for research and clinical use, and for discriminating neuropathic pain from non-neuropathic pain.
authors.affiliation: Department of Neuromodulation and Neurosurgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan; Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Maruo
authors.forename: Aya
authors.initials: A
authors.lastname: Nakae
authors.forename: Lynn
authors.initials: L
authors.lastname: Maeda
authors.forename: Kenrin
authors.initials: K
authors.lastname: Shi
authors.forename: Kayoko
authors.initials: K
authors.lastname: Takahashi
authors.forename: Shayne
authors.initials: S
authors.lastname: Morris
authors.forename: Koichi
authors.initials: K
authors.lastname: Hosomi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kanatani
authors.forename: Taiga
authors.initials: T
authors.lastname: Matsuzaki
authors.forename: Youichi
authors.initials: Y
authors.lastname: Saitoh
mesh_terms: D044466:Asian People; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D009437:Neuralgia / Q000175:diagnosis*; D010146:Pain / Q000175:diagnosis; D010147:Pain Measurement / Q000379:methods*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
keywords: Neuropathic Pain; Reliability and Validity; Short-Form McGill Pain Questionnaire 2