Kidayi Paulo L, Pakpour Amir H, Saboonchi Fredrik, Bray Freddie, Manhica Hélio, Mtuya Christina C, Serventi Furaha, Aune Ragnhild E, Mahande Michael J, Björling Gunilla
Faculty of Nursing, Kilimanjaro Christian Medical University College, Moshi 2240, Tanzania.
Department of Nursing, School of Health and Welfare, Jönköping University, SE-55111 Jönköping, Sweden.
Healthcare (Basel). 2023 Sep 5;11(18):2467. doi: 10.3390/healthcare11182467.
Breast cancer is the most frequent cancer in women in Africa and contributes to premature death and poor quality of life. This study aimed to determine the validity, reliability, and psychometric properties of the Swahili version of EORTC QLQ-BR45 among women with breast cancer in Tanzania. A cross-sectional study design with non-probability convenience sampling was employed. Data were collected in two tertiary hospitals and one national cancer institute; 414 participants completed the EORTC-QLQ-C-30 and EORTC-QLQ-BR45. The reliability of QLQ-BR45 was measured using Cronbach's alpha and McDonald's Omega coefficients. The factor structure of EORTC QLQ-BR45 was assessed using confirmatory factor analysis. The internal consistencies for the five dimensions were all above 0.7 indicating satisfaction, except for systemic therapy side effects with a marginal value of 0.594 and significant correlations between the dimensions of QLQ-C30 and BR45. The final model fit well to the data, with the comparative fit index = 0.953, Tucker-Lewis index = 0.947, root mean square error of approximation = 0.041 (90% CI: 0.035, 0.046), and standardized root mean square residual = 0.072. In conclusion, the QLQ BR45 Swahili version displayed good reliability, validity, and psychometric properties and can be used in Swahili-speaking Sub-Saharan countries.
乳腺癌是非洲女性中最常见的癌症，会导致过早死亡和生活质量下降。本研究旨在确定欧洲癌症研究与治疗组织（EORTC）QLQ - BR45斯瓦希里语版本在坦桑尼亚乳腺癌女性中的有效性、可靠性和心理测量特性。采用了非概率便利抽样的横断面研究设计。在两家三级医院和一家国家癌症研究所收集数据；414名参与者完成了EORTC - QLQ - C - 30和EORTC - QLQ - BR45。使用克朗巴哈系数（Cronbach's alpha）和麦克唐纳欧米茄系数（McDonald's Omega）测量QLQ - BR45的可靠性。使用验证性因素分析评估EORTC QLQ - BR45的因素结构。除全身治疗副作用维度的边际值为0.594外，五个维度的内部一致性均高于0.7，表明满意度良好，且QLQ - C30和BR45维度之间存在显著相关性。最终模型与数据拟合良好，比较拟合指数 = 0.953，塔克 - 刘易斯指数 = 0.947，近似均方根误差 = 0.041（90%置信区间：0.035，0.046），标准化均方根残差 = 0.072。总之，QLQ BR45斯瓦希里语版本显示出良好的可靠性、有效性和心理测量特性，可用于撒哈拉以南讲斯瓦希里语的国家。
