Clínica Rodero, Santander, Spain.
J Psychosom Res. 2012 Aug;73(2):86-91. doi: 10.1016/j.jpsychores.2012.05.011. Epub 2012 Jun 20.
To validate a Spanish version of the Injustice Experience Questionnaire (IEQ), a measure of perceived injustice, in a fibromyalgia sample and to examine its relationship with pain catastrophising and pain acceptance.
The IEQ was administered along with the Pain Visual Analogue Scale, the Fibromyalgia Impact Questionnaire, the Hospital Anxiety and Depression Scale, the Pain Catastrophizing Scale (PCS) and the Chronic Pain Acceptance Questionnaire (CPAQ) to 250 primary care patients with fibromyalgia.
The IEQ had good test-retest reliability (intraclass correlation coefficient=0.98) and internal consistency (Cronbach's α=0.92). The factor structure obtained was similar to the original validation study. The multiple regression analyses showed that perceived injustice (PI) accounted for significant pain-related outcomes after controlling pain intensity, PCS and CPAQ. Principal component analysis of both the IEQ and the CPAQ taken together showed that the two constructs do not represent opposite extremes of the same dimension.
The IEQ is a reliable assessment tool for measuring PI among patients with fibromyalgia. PI seems to be distinct from catastrophising, although the two constructs are very similar. The factor analysis showed that PI and acceptance represent related constructs, and this entails relevant implications for therapy, as acceptance-based interventions would be appropriate.
验证一种用于感知不公正的测量工具——不公正体验问卷（IEQ）的西班牙语版本在纤维肌痛样本中的有效性，并研究其与疼痛灾难化和疼痛接受之间的关系。
在 250 名接受初级保健的纤维肌痛患者中，同时使用疼痛视觉模拟量表、纤维肌痛影响问卷、医院焦虑抑郁量表、疼痛灾难化量表（PCS）和慢性疼痛接受问卷（CPAQ）来管理 IEQ。
IEQ 具有良好的重测信度（组内相关系数=0.98）和内部一致性（Cronbach's α=0.92）。所获得的因子结构与原始验证研究相似。多元回归分析表明，在控制疼痛强度、PCS 和 CPAQ 后，感知不公正（PI）可以解释与疼痛相关的结果。IEQ 和 CPAQ 的主成分分析表明，这两个结构并不代表同一维度的相反极端。
IEQ 是一种用于测量纤维肌痛患者 PI 的可靠评估工具。PI 似乎与灾难化不同，尽管这两个结构非常相似。因子分析表明，PI 和接受代表相关的结构，这对治疗具有重要意义，因为基于接受的干预措施是合适的。
