Abel Salazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal.
Center for Health Technology and Services Research (CINTESIS.ICBAS), University of Porto, Porto, Portugal.
Clin Gerontol. 2022 May-Jun;45(3):525-537. doi: 10.1080/07317115.2020.1728807. Epub 2020 Feb 17.
Brief screening instruments are useful in busy clinical practice to identify those requiring further assessment. This study aims to translate and validate a Portuguese version of the four-item Zarit Burden Interview (ZBI-4) to identify caregiver burden in a community-based sample in Northern Portugal. We collected data from 203 informal caregivers of community-dwellers aged ≥80 years. Internal consistency and factors were measured using Cronbach's alpha. Pearson's correlation was used to examine construct validity against negative and positive aspects of caregiving from the Caregiving Appraisal Scale. Discriminative ability was evaluated from the area under the receiver operating characteristic curve (AUC). Optimal cutoffs were calculated using Youden´s Index. The internal consistency of the Portuguese version of the ZBI-4 was good (alpha = 0.71). Concurrent validity was acceptable, showing strong correlation with the negative (= 0.66) and medium correlation with positive (rho = -0.33) aspects of the Caregiving Appraisal Scale. Discriminative accuracy for caregiver burden was also good (AUC = 0.86). Youden's index produced an optimal cutoff of ≥7 points for burden.: The Portuguese version of the ZBI-4 screen demonstrates good psychometric properties. These results show the utility of the Portuguese version of ZBI-4 as a short screen for caregiver burden for use in the community to facilitate rapid screening for this important and complex stressor.
简短的筛选工具在繁忙的临床实践中很有用，可以识别那些需要进一步评估的患者。本研究旨在翻译和验证葡萄牙语版的四项 Zarit 负担访谈（ZBI-4），以识别葡萄牙北部社区样本中的照顾者负担。我们收集了 203 名 80 岁及以上社区居民的非正式照顾者的数据。使用 Cronbach's alpha 测量内部一致性和因素。Pearson 相关用于检验与 Caregiving Appraisal Scale 的照顾负面和积极方面的构念效度。使用接收者操作特征曲线（AUC）下的面积评估判别能力。使用 Youden 的指数计算最佳截断值。ZBI-4 葡萄牙语版本的内部一致性良好（alpha = 0.71）。同时效度可接受，与 Caregiving Appraisal Scale 的负面（= 0.66）方面呈强相关，与积极（rho = -0.33）方面呈中度相关。照顾者负担的判别准确性也很好（AUC = 0.86）。Youden 的指数产生了一个最佳的截断值≥7 分，表示负担。：ZBI-4 葡萄牙语版本的屏幕具有良好的心理测量学特性。这些结果表明，ZBI-4 葡萄牙语版本可作为社区中照顾者负担的简短筛查工具，用于快速筛查这一重要且复杂的应激源。
