This study examined the psychometric properties of a Brazilian adapted version of the Coronavirus Anxiety Scale (CAS-BR) in a sample of adults in Brazil. Confirmatory factor analyses demonstrated that the CAS-BR produces a reliable (α = .84), unidimensional construct whose structure was shown to be invariant across gender, race, and age. However, some items of the CAS-BR were stronger indicators of the coronavirus anxiety construct for women and younger adults. Although the CAS-BR demonstrated evidence of discrimination ability for functional impairment (AUC = .77), Youden indexes were low to identify a clinical cut-score. Construct validity was demonstrated with correlations between CAS-BR scores and measures of functional impairment, generalized anxiety, and depression. Exploratory analyses revealed that CAS-BR total scores were higher among women and participants with a history of anxiety disorder. These findings are consistent with previous investigations and support the validity of CAS-BR for measuring coronavirus anxiety with Brazilian adults.

本研究检查了巴西成人样本中冠状病毒焦虑量表 (CAS-BR) 的巴西改编版本的心理测量特性。验证性因素分析表明，CAS-BR 产生了可靠的 (α = .84)、一维构造，其结构显示在性别、种族和年龄之间是不变的。然而，CAS-BR 的一些项目是女性和年轻人冠状病毒焦虑结构的更强指标。尽管 CAS-BR 显示了功能障碍辨别能力的证据 (AUC = .77)，但约登指数较低，无法确定临床分值。结构效度通过 CAS-BR 评分与功能障碍、广泛性焦虑和抑郁测量之间的相关性得到证实。探索性分析显示，女性和有焦虑症病史的参与者的 CAS-BR 总分更高。这些发现与之前的调查一致，并支持 CAS-BR 测量巴西成年人冠状病毒焦虑的有效性。