Department and Institute of Psychiatry, University of São Paulo, SP, Brazil.
Arch Clin Neuropsychol. 2010 Jun;25(4):335-43. doi: 10.1093/arclin/acq029.
The Direct Assessment of Functional Status-Revised (DAFS-R) is an instrument developed to objectively measure functional capacities required for independent living. The objective of this study was to translate and culturally adapt the DAFS-R for Brazilian Portuguese (DAFS-BR) and to evaluate its reliability and validity. The DAFS-BR was administered to 89 older patients classified previously as normal controls, mild cognitive impairment (MCI) and Alzheimer's disease (AD). The results indicated good internal consistency (Cronbach's alpha = 0.78) in the total sample. The DAFS-BR showed high interobserver reliability (0.996; p < .001) as well as test-retest stability over 1-week interval (0.995; p < .001). Correlation between the DAFS-BR total score and the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) was moderate and significant (r = -.65, p < .001) in the total sample, whereas it did not reach statistical significance within each diagnostic group. Receiver operating characteristic curve analyses suggested that DAFS-BR has good sensitivity and specificity to identify MCI and AD. Results suggest that DAFS-BR can document degrees of severity of functional impairment among Brazilian older adults.
功能状态直接评估修订版（DAFS-R）是一种用于客观测量独立生活所需功能能力的工具。本研究的目的是将 DAFS-R 翻译并文化适应为巴西葡萄牙语（DAFS-BR），并评估其可靠性和有效性。DAFS-BR 被用于 89 名老年人，他们之前被归类为正常对照组、轻度认知障碍（MCI）和阿尔茨海默病（AD）。结果表明，在总样本中具有良好的内部一致性（Cronbach's alpha = 0.78）。DAFS-BR 显示出高度的观察者间可靠性（0.996；p <.001）以及在 1 周间隔的测试 - 重测稳定性（0.995；p <.001）。DAFS-BR 总分与认知衰退老年人 informant 问卷（IQCODE）之间的相关性在总样本中是中度且显著的（r = -.65，p <.001），而在每个诊断组中均未达到统计学意义。接收器操作特性曲线分析表明，DAFS-BR 对识别 MCI 和 AD 具有良好的敏感性和特异性。结果表明，DAFS-BR 可以记录巴西老年人功能损伤的严重程度。
