Cho Hyong Jin, Costa Erico, Menezes Paulo Rossi, Chalder Trudie, Bhugra Dinesh, Wessely Simon
Institute of Psychiatry, King's College London, London, United Kingdom.
J Psychosom Res. 2007 Mar;62(3):301-4. doi: 10.1016/j.jpsychores.2006.10.018.
The Chalder Fatigue Questionnaire (CFQ) is an instrument used to measure physical and mental fatigue. We translated and adapted the questionnaire and tested its reliability and validity in a Brazilian primary care setting.
A pilot study with 204 consecutive primary care attenders in Sao Paulo, Brazil, verified the internal consistency and factor structure of the questionnaire. After some modifications through a rigorous translation, back-translation, and cross-cultural adaptation procedure, a validation study was conducted with 304 attenders, who also completed the fatigue section of the Revised Clinical Interview Schedule (CIS-R).
The internal consistency of the Brazilian CFQ slightly improved from the pilot to the validation study: Cronbach's alpha from .86 to .88. The two-factor structure (physical and mental fatigue) also improved. According to the receiver operating curve analysis with the fatigue section of the CIS-R as the standard criterion, 3/4 was chosen as the cutoff for Brazilian primary care (sensitivity 69.1% and specificity 79.4%).
The Brazilian CFQ had good reliability and validity. The cutoff was determined as 3/4 and the factor structure of the English CFQ was closely reproduced.
查尔德疲劳问卷（CFQ）是一种用于测量身心疲劳的工具。我们对该问卷进行了翻译和改编，并在巴西初级保健环境中测试了其信度和效度。
在巴西圣保罗对204名连续的初级保健就诊者进行了一项试点研究，验证了问卷的内部一致性和因子结构。通过严格的翻译、回译和跨文化适应程序进行了一些修改后，对304名就诊者进行了一项验证研究，他们还完成了修订后的临床访谈时间表（CIS-R）中的疲劳部分。
从试点研究到验证研究，巴西CFQ的内部一致性略有提高：克朗巴赫α系数从0.86提高到0.88。两因素结构（身体和精神疲劳）也有所改善。以CIS-R的疲劳部分作为标准标准进行的接受者操作曲线分析表明，选择3/4作为巴西初级保健的临界值（敏感性69.1%，特异性79.4%）。
巴西CFQ具有良好的信度和效度。确定临界值为3/4，并且紧密再现了英文CFQ的因子结构。
