García Campayo Javier, Rodero Baltasar, Alda Marta, Sobradiel Natalia, Montero Jesús, Moreno Sergio
Departamento de Psiquiatría, Hospital Universitario Miguel Servet, Universidad de Zaragoza, Zaragoza, Spain.
Med Clin (Barc). 2008 Oct 18;131(13):487-92. doi: 10.1157/13127277.
Pain catastrophization is considered an important risk factor for pain in general and, specifically, for fibromyalgia. There are no validated Spanish versions of any of the questionnaires developed to assess pain catastrophization. The aim of this study was to validate the Spanish version of the Pain Catastrophization Scale (PCS), one of the most used questionnaires to assess pain catastrophization.
A prospective, observational and multicentre study was carried out in clinically stable and unstable patients with fibromyalgia. Factorial structure, convergent validity, reliability (internal consistency and test-retest) and sensitivity to change were assessed.
Two hundred and thirty patients from 12 primary care health centres were included. The Spanish version of the PCS showed the same 3-factor structure (rumination, magnification and helplessness) described in the original study. It also showed appropriate internal consistency (Cronbach alpha=0.79), test-retest reliability (intraclass correlation coefficient=0.84) and sensitivity to change (effect size<or=2).
The Spanish version of the PCS shows appropriate psychometric properties, similar to the English original scale. Therefore, PCS could be useful for clinical practice and research in Spanish patients with fibromyalgia.
疼痛灾难化通常被认为是疼痛尤其是纤维肌痛的一个重要风险因素。目前尚无经过验证的用于评估疼痛灾难化的任何问卷的西班牙语版本。本研究的目的是验证疼痛灾难化量表（PCS）的西班牙语版本，这是评估疼痛灾难化最常用的问卷之一。
对临床稳定和不稳定的纤维肌痛患者进行了一项前瞻性、观察性多中心研究。评估了因子结构、收敛效度、信度（内部一致性和重测信度）以及对变化的敏感性。
纳入了来自12个初级保健健康中心的230名患者。PCS的西班牙语版本显示出与原始研究中描述的相同的三因子结构（沉思、放大和无助）。它还显示出适当的内部一致性（克朗巴赫α系数=0.79）、重测信度（组内相关系数=0.84）以及对变化的敏感性（效应大小≤2）。
PCS的西班牙语版本显示出适当的心理测量特性，与英语原版量表相似。因此，PCS可用于西班牙纤维肌痛患者的临床实践和研究。
