Department of Psychiatry, Miguel Servet University Hospital, Instituto Aragonés de Ciencias de la Salud, University of Zaragoza, Spain.
BMC Musculoskelet Disord. 2010 Nov 4;11:255. doi: 10.1186/1471-2474-11-255.
The Pain Self-Perception Scale (PSPS) is a 24-item questionnaire used to assess mental defeat in chronic pain patients. The aim of this study was to develop a Spanish language version of the PSPS (PSPS-Spanish), to assess the instrument's psychometric properties in a sample of patients with fibromyalgia and to confirm a possible overlapping between mental defeat and pain catastrophizing.
The PSPS was translated into Spanish by three bilingual content and linguistic experts, and then back-translated into English to assess for equivalence. The final Spanish version was administered, along with the Hospital Anxiety Depression Scale (HADS), Pain Visual Analogue Scale (PVAS), Pain Catastrophizing Scale (PCS) and Fibromyalgia Impact Questionnaire (FIQ), to 250 Spanish patients with fibromyalgia.
PSPS-Spanish was found to have high internal consistency (Cronbach's α = 0.90 and the item-total r correlation coefficients ranged between 0.68 and 0.86). Principal components analysis revealed a one-factor structure which explained 61.4% of the variance. The test-retest correlation assessed with the intraclass correlation coefficient, over a 1-2 weeks interval, was 0.78. The total PSPS score was significantly correlated with all the questionnaires assessed (HADS, PVAS, PCS, and FIQ).
The Spanish version of the PSPS appears to be a valid tool in assessing mental defeat in patients with fibromyalgia. In patients with fibromyalgia and Post-Traumatic Stress Disorder (PTSD), PSPS-Spanish correlates more intensely with FIQ than in patients without PTSD. Mental defeat seems to be a psychological construct different to pain catastrophizing.
疼痛自我知觉量表（PSPS）是一种用于评估慢性疼痛患者心理挫败感的 24 项问卷。本研究旨在开发 PSPS 的西班牙语版本（PSPS-Spanish），评估该工具在纤维肌痛患者样本中的心理测量特性，并确认心理挫败感和疼痛灾难化之间可能存在重叠。
PSPS 通过三位双语内容和语言专家翻译成西班牙语，然后再翻译成英语以评估等效性。最终的西班牙语版本与医院焦虑抑郁量表（HADS）、疼痛视觉模拟量表（PVAS）、疼痛灾难化量表（PCS）和纤维肌痛影响问卷（FIQ）一起，共评估了 250 名西班牙纤维肌痛患者。
PSPS-Spanish 具有较高的内部一致性（Cronbach's α=0.90，项目总分的相关系数在 0.68 至 0.86 之间）。主成分分析显示，单因素结构解释了 61.4%的方差。使用组内相关系数评估的 1-2 周间隔的测试-重测相关性为 0.78。PSPS 的总分与所有评估的问卷（HADS、PVAS、PCS 和 FIQ）均显著相关。
PSPS 的西班牙语版本似乎是评估纤维肌痛患者心理挫败感的有效工具。在纤维肌痛和创伤后应激障碍（PTSD）患者中，PSPS-Spanish 与 FIQ 的相关性比无 PTSD 患者更强。心理挫败感似乎是一种与疼痛灾难化不同的心理结构。
