与未参与健康认知衰老项目相关的因素
Sarah Assaad1, Shabina Hayat2, Carol Brayne3
1Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK.
概括
在认知衰老研究中,参与偏见是常见的. 患有日常生活困难,痴呆症或精神疾病的个人不太可能参与,这会影响数据的有效性.
科学领域:
- 老年学是一门学科.
- 认知科学 认知科学
- 流行病学 流行病学
背景情况:
- 了解认知能力下降对于预防痴呆症至关重要.
- 许多痴呆病例仍未被发现,这突显了对精确研究的需要.
- 确定参与偏见对于确保认知衰老研究的有效性至关重要.
研究的目的:
- 检查健康认知衰老项目 (HCAP) 中的非参与相关性.
- 为了比较参与者与非参与者的社会人口统计和健康特征.
- 评估样本权重对理解参与偏差的影响.
主要方法:
- 来自健康认知衰老项目 (HCAP) 的数据分析,这是英国长度衰老研究 (ELSA) 的一个子研究.
- 在受邀,接受采访和未接受采访的个人之间比较社会人口统计和健康因素.
- 采样权重的应用,以评估参与者特征的差异.
主要成果:
- 在1778名受邀个人中,1273人 (72%) 参与了HCAP.
- 参与者通常在社会人口统计学上反映了受邀样本,但年龄较小,日常生活困难较少,认知能力更好.
- 非参与与日常生活中的困难 (OR 1.78) 痴呆症 (OR 1.55) 和精神疾病 (OR 1.34) 有关.
结论:
- 不参与认知衰老研究不是随机的,影响反应和保留率.
- 除了样本权重之外的统计调整是必要的,以解决非参与偏差.
- 这些发现强调了在认知健康研究中考虑参与者选择的重要性.
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