Pertl Maria Margareta, Hevey David, Donohoe Gary, Collier Sonya
School of Psychology, Aras An Phiarsaigh, Trinity College Dublin, Dublin 2, Ireland.
J Clin Psychol Med Settings. 2012 Sep;19(3):293-307. doi: 10.1007/s10880-012-9298-z.
Cancer-related fatigue (CRF) is a common and distressing side-effect of cancer treatment. The present study developed a brief version of the Illness Perception Questionnaire (IPQ) for assessing patients' representations of CRF. Cancer patients and survivors (n = 155) completed a revised version of the IPQ as well as measures of fatigue severity at two different time-points. Confirmatory factor analysis at both Time 1 and 2 showed that the seven-factor solution based on the Self-Regulation Model fit the data adequately and factorial invariance over the two time-points was supported. The resulting subscales exhibited good internal consistency and test-retest reliability. The adapted version of the IPQ shows promise for the assessment of patient perceptions regarding CRF. The scale may be able to be used clinically to identify if patients have inaccurate or unhelpful representations of CRF and to help tailor interventions for persistent fatigue in cancer survivors.
癌症相关疲劳（CRF）是癌症治疗常见且令人痛苦的副作用。本研究开发了一份简短版的疾病认知问卷（IPQ），用于评估患者对CRF的认知。癌症患者及幸存者（n = 155）在两个不同时间点完成了IPQ的修订版以及疲劳严重程度测量。时间1和时间2的验证性因素分析均表明，基于自我调节模型的七因素解决方案能充分拟合数据，且支持两个时间点间的因子不变性。由此产生的分量表具有良好的内部一致性和重测信度。IPQ的改编版在评估患者对CRF的认知方面显示出前景。该量表或许可在临床上用于识别患者对CRF的认知是否不准确或无帮助，并有助于为癌症幸存者的持续性疲劳量身定制干预措施。
