Factors associated with non-participation in the Healthy Cognitive Ageing Project.

ABSTRACT:

Background

Understanding cognitive decline trajectories is crucial for dementia prevention, as many cases go undetected. Identifying participation biases in such studies is essential for data validity.

Methods

We examined non-participation correlates in the Healthy Cognitive Ageing Project (HCAP), a sub-study of the English Longitudinal Study of Ageing (ELSA). We compared sociodemographic and health characteristics of invited, interviewed, and non-interviewed individuals, and assessed the impact of sample weights.

Results

Of 1778 ELSA members invited in 2018, 1273 (72%) participated. Participants were similar to the invited sample in sociodemographics but were younger, had fewer daily living difficulties, and had better cognition. Non-participation was linked to diffi

SUBMITTER: Assaad S 

PROVIDER: S-EPMC12034936 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature