临床表现 临床表现
Zeling He1, John Hanfelt1, Felicia C Goldstein2
1Emory University Rollins School of Public Health, Atlanta, GA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
日常生活工具活动 (IADL) 尺度可能会因种族和信息因素而产生偏见. 调整差异物品功能 (DIF) 提高了老年人认知障碍诊断的准确性.
科学领域:
- 老年学是指老年学的学科.
- 神经科学是一个神经科学.
- 心理测量 心理测量 心理测量
背景情况:
- 在老年人中,日常生活工具活动 (IADL) 尺度对于诊断轻度认知障碍 (MCI) 与痴呆症至关重要.
- IADL评级表可能会受到差异性项目功能 (DIF) 的影响,引入基于人口或上下文因素的偏差.
- 解决DIF对于公平获得临床试验和FDA批准的认知障碍治疗方法至关重要.
研究的目的:
- 在功能活动问卷 (FAQ) 中评估差异性项目功能 (DIF),这是一个基于信息者的IADL规模.
- 评估参与者种族和信息人特征对IADL评级的影响.
- 确定DIF调整是否可以减轻偏差,并提高MCI老年人IADL评估的准确性.
主要方法:
- 利用基于概率的差异物品功能调查 (LIDIF) 模型对来自国家阿尔茨海默氏症协调中心统一数据集的7,958名患有MCI的参与者的数据进行了研究.
- 同时根据多个共同变量进行调整,包括参与者的年龄,性别,教育程度,种族,告知者的性别和同居状态.
- 估计DIF调整的IADL水平使用后期手段来减轻评级偏差.
主要成果:
- 在所有10个常见问题项目中都发现了显著的DIF效应,而种族和告密者特征是偏见的关键来源.
- 黑人参与者被认为比白人参与者减弱程度较低,特别是在较高的减弱水平,即使在对共变量进行调整后.
- 举报人的同居状态影响了评分;非同居的举报人报告的功能障碍较小. DIF调整减少了种族差异和基层效应,识别了更多的残疾人.
结论:
- 在FAQ评估中,考虑到人口和信息人特征至关重要.
- 对DIF进行调整可以提高IADL评估的准确性和公平性.
- 改进的IADL评估支持公平的临床决策和在不同人群中适当承认功能障碍.
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