Purpose. Pain is one of the nonmotor symptoms of Parkinson’s disease (PD) that, in order to be better managed, requires to be evaluated. Evaluations are done using pain assessment scales such as the Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2). The goal of this study was to assess the psychometric properties of SF-MPQ-2 to measure pain in people with PD. Methods. Four hundred and twenty-eight PD patients with a mean (SD) age of 60.11 (11.44) years were included. Accessibility was measured through floor and ceiling effects. Dimensionality was estimated by exploratory factor analysis. The association between SF-MPQ-2 and other scales such as Neuropathic Pain Symptom Inventory, Douleur Neuropathic 4, Brief Pain Inventory, King’s Pain Parkinson’s Disease Scale, and Visual Analog Scale-Pain was considered to calculate convergent validity. Internal consistency and test-retest reliability were assessed by Cronbach’s alpha and intraclass correlation coefficient (ICC), respectively. Results. A noticeable floor effect was found. Dimensionality results indicated four factors for this scale. A strong relationship was found between the SF-MPQ-2 total score and other scales (r = 0.55 to 0.85). In reliability analysis, Cronbach’s alpha and ICC were 0.93 and 0.94 for SF-MPQ-2, respectively. Conclusion. The results of this study showed that SF-MPQ-2 has adequate validity and reliability to measure pain in people with Parkinson’s disease.

中文翻译：

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伊朗帕金森病患者短期麦吉尔疼痛问卷 2 (SF-MPQ-2) 的有效性和可靠性。

目的。疼痛是帕金森病 (PD) 的非运动症状之一，为了更好地管理，需要对其进行评估。使用疼痛评估量表进行评估，例如 Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2)。本研究的目的是评估 SF-MPQ-2 的心理测量特性，以测量 PD 患者的疼痛。方法. 纳入了 428 名平均 (SD) 年龄为 60.11 (11.44) 岁的 PD 患者。可达性是通过地板和天花板的影响来衡量的。通过探索性因素分析估计维度。考虑到 SF-MPQ-2 与其他量表之间的关联，例如神经性疼痛症状量表、Duleur 神经病理性 4、简短疼痛量表、King's Pain 帕金森病量表和视觉模拟量表 - 疼痛，以计算收敛效度。内部一致性和重测信度分别通过 Cronbach's alpha 和组内相关系数 (ICC) 进行评估。结果。发现了明显的地板效应。维度结果表明该量表有四个因素。SF-MPQ-2 总分与其他量表之间存在密切关系（r  = 0.55 至 0.85）。在可靠性分析中，SF-MPQ-2 的 Cronbach's alpha 和 ICC 分别为 0.93 和 0.94。结论。这项研究的结果表明，SF-MPQ-2 具有足够的有效性和可靠性来衡量帕金森病患者的疼痛。