Department of Neurosciences, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil.
J Pain Symptom Manage. 2013 Jul;46(1):121-30. doi: 10.1016/j.jpainsymman.2012.07.017. Epub 2012 Dec 5.
Chronic pain is a common complaint among patients with muscular disease. The Wisconsin Brief Pain Questionnaire (WBPQ) has been used to quantify pain severity and pain interference with daily functions.
To translate the WBPQ for use with Brazilian patients and to evaluate the psychometric properties of the adaptation.
We conducted a cross-cultural adaptation of the original English version of the WBPQ for use in Brazil (WBPQ-B) and evaluated the psychometric properties of the adapted version. The original questionnaire was translated, evaluated by an expert panel, pilot tested in 40 patients, and back-translated. Subsequently, the tool was administered, in a cross-sectional study, to 100 adult patients who had muscular disease and were being attended to at our university hospital.
We performed a confirmatory factor analysis and assessed the reliability and validity of the questionnaire (Appendix). The two-factor structure (pain intensity and pain interference) was confirmed satisfactorily. Internal consistency for both scales was adequate (Cronbach's alpha = 0.74 and 0.79, respectively), as was the interrater stability (intraclass correlation coefficients = 0.88 and 0.92, respectively). Convergent validity with the 36-Item Short Form Health Survey was supported by confirmation of a priori hypotheses of negative and satisfactory correlations between the WBPQ-B and some of the 36-Item Short Form Health Survey domains. The pain interference scale correlated higher with the mental summary component. Known-group validity analysis showed that the pain intensity items and scale of the WBPQ-B were higher in the groups where patients with exercise intolerance were concentrated.
We found the WBPQ-B to be a reliable and valid instrument for pain assessment of Brazilians who have muscular disease. The survey presents similar psychometric properties to the original version.
慢性疼痛是肌肉疾病患者常见的主诉。威斯康星州简明疼痛问卷（WBPQ）已被用于量化疼痛严重程度和疼痛对日常功能的干扰。
将 WBPQ 翻译成巴西患者使用的版本，并评估改编版的心理测量特性。
我们对原始 WBPQ 的英文版本进行跨文化改编，以用于巴西（WBPQ-B），并评估改编版本的心理测量特性。原始问卷经过翻译、专家小组评估、在 40 名患者中进行试点测试和回译。随后，在我们大学医院就诊的 100 名成年肌肉疾病患者中进行横断面研究，应用该工具进行调查。
我们进行了验证性因子分析，并评估了问卷的可靠性和有效性（附录）。两因素结构（疼痛强度和疼痛干扰）得到了令人满意的确认。两个量表的内部一致性都很好（Cronbach's alpha 分别为 0.74 和 0.79），评分者间稳定性也很好（组内相关系数分别为 0.88 和 0.92）。WBPQ-B 与 36 项简明健康调查问卷之间的收敛效度通过确认 WBPQ-B 与 36 项简明健康调查问卷某些域之间的负相关和满意相关的先验假设得到支持。疼痛干扰量表与精神综合成分的相关性更高。已知组有效性分析表明，在运动不耐受患者集中的组中，WBPQ-B 的疼痛强度项目和量表更高。
我们发现 WBPQ-B 是一种可靠且有效的评估巴西肌肉疾病患者疼痛的工具。该调查具有与原始版本相似的心理测量特性。
