Open AccessReliability, Validity, and Sensitivity Measures of Expanded and Revised Version of the Short‐Form M c G ill P ain Q uestionnaire ( SF ‐ MPQ ‐2) in I ranian Patients with Neuropathic and Non‐Neuropathic Pain
Author(s) -
Adelmanesh Farhad,
Jalali Ali,
Attarian Hamid,
Farahani Behzad,
Ketabchi Seyed Mehdi,
Arvantaj Ali,
Raissi Gholam Reza
Publication year - 2012
Publication title -
pain medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.893
H-Index - 97
eISSN - 1526-4637
pISSN - 1526-2375
DOI - 10.1111/j.1526-4637.2012.01517.x
Subject(s) - neuropathic pain , medicine , mcgill pain questionnaire , reliability (semiconductor) , physical therapy , anesthesia , visual analogue scale , power (physics) , physics , quantum mechanics
Objective The aim of this study was to assess validity, reliability, and sensitivity of the P ersian version of the short‐form M c G ill P ain Q uestionnaire 2 ( SF‐MPQ ‐2) in patients with neuropathic and non‐neuropathic pain. Design Beaton's guideline was used to translate and adapt the SF ‐ MPQ ‐2 to P ersian. Subjects One hundred eighty‐four patients with subacute and chronic non‐neuropathic pain and 74 patients with painful diabetic peripheral neuropathy (total 258) attending multidisciplinary pain clinic participated in the study. Outcome Measures Internal consistency and intraclass correlation coefficient ( ICC ) were estimated for participants who had completed the questionnaire in the morning and evening of the first day. The visual analog scale ( VAS ) and the present pain intensity ( PPI ) were also recorded to test convergent validity of the questionnaire. Sensitivity to change was examined after a standard treatment and validated by means of the patient global impression of change ( PGIC ) in addition to VAS and PPI . Exploratory factor analysis ( EFA ) was used to find possible components. Results C ronbach's alpha was 0.906, which showed high internal consistency. ICC (0.941) revealed test–retest reliability. There was high correlation between the mean VAS and the mean total score ( r = 0.926). Patients in different levels of PPI and PGIC exhibited significant differences among their mean total scores ( P < 0.05). EFA revealed four components similar to the original SF ‐ MPQ ‐2. Conclusion The P ersian translation of the expanded and revised version of the SF ‐ MPQ ‐2 is a highly reliable, sensitive, and valid instrument to evaluate pain in patients with and without neuropathic etiology.