U.O. Regional Palliative Care Network, IRCCS A.O.U. San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi 10, 16132, Genoa, Italy.
Support Care Cancer. 2013 Feb;21(2):413-9. doi: 10.1007/s00520-012-1539-z. Epub 2012 Jul 13.
Cancer-related fatigue (CRF) is one of the most common symptoms experienced by cancer patients (CPs). The Brief Fatigue Inventory (BFI) is a reliable instrument to assess CRF in CPs. The aim of this study was to evaluate the psychometric properties of the Italian version of the BFI (BFI-I).
The BFI-I was developed by using the forward-backward translation approach. The psychometric properties of the BFI-I were assessed in terms of acceptability, internal consistency, and validity. Outpatient CPs filled in BFI-I along with the Medical Outcome Study Quality of Life Short Form 36 (SF36). Demographic and health data were collected.
The BFI-I had an overall Cronbach alpha for the nine items of 0.94. The inter-item mean correlation was 0.64, and coefficients ranged from 0.47 to 0.81 for the nine items. The results of the factor analysis suggested a 1-factor solution explaining 68 % of the variance, supporting the hypothesis of unidimensionality of the BFI-I. The BFI-I score was compared to SF36 subscales score to evaluate concurrent validity. An expected inverse correlation between the BFI-I and the vitality subscale of the SF36 was observed (r = -0.67, 95 % confidence interval -0.73 to -0.59). The correlation with the other subscales of the SF36 ranged between -0.56 and -0.13. Discriminant validity analysis showed the BFI-I mean score significantly increased with increasing Eastern Cooperative Oncology Group values (p < 0.001).
BFI-I is a clinical instrument with satisfactory psychometric properties to assess CRF in Italian CPs.
癌症相关疲劳（CRF）是癌症患者（CPs）最常见的症状之一。简短疲劳量表（BFI）是评估 CPs 中 CRF 的可靠工具。本研究旨在评估 BFI 的意大利语版本（BFI-I）的心理测量特性。
BFI-I 通过正向-反向翻译方法开发。通过可接受性、内部一致性和有效性来评估 BFI-I 的心理测量特性。门诊 CPs 填写 BFI-I 以及医疗结局研究生活质量短表 36（SF36）。收集人口统计学和健康数据。
BFI-I 的九个项目的总 Cronbach alpha 为 0.94。项目间平均相关系数为 0.64，九个项目的系数范围为 0.47 至 0.81。因子分析的结果表明，存在一个解释 68%方差的单因素解决方案，支持 BFI-I 单维性的假设。BFI-I 评分与 SF36 子量表评分进行比较，以评估同时效度。观察到 BFI-I 评分与 SF36 活力子量表之间存在预期的负相关（r = -0.67，95%置信区间 -0.73 至 -0.59）。与 SF36 的其他子量表的相关性在 -0.56 至 -0.13 之间。判别有效性分析表明，BFI-I 的平均评分随着东部合作肿瘤学组（ECOG）值的增加而显著增加（p < 0.001）。
BFI-I 是一种具有令人满意的心理测量特性的临床工具，可用于评估意大利 CPs 中的 CRF。
