The Influence of Vision Impairment on the Measurement of Cognition in Older Adults in India: Findings From LASI-DAD.

ABSTRACT:

Background and objectives

Prior investigations have not considered whether poor vision biases cognitive testing. However, such research is vital given increasing evidence that vision impairment (VI) may be an important modifiable risk factor for dementia, particularly in low- and middle-income settings where the prevalence of VI is high.

Research design and methods

This study employed data from 3 784 participants in Wave 1 of the Longitudinal Aging Study in India-Diagnostic Assessment of Dementia (LASI-DAD) who underwent both visual acuity and cognitive function testing. We used multiple indicators and multiple causes models to assess differential item functioning (DIF; eg, bias) in cognitive testing by objectively measured distance and near VI. Multivariable linear regressi

SUBMITTER: Ehrlich JR 

PROVIDER: S-EPMC11405126 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature