Spousal Caregiving Types and Cognitive Trajectories Among Middle-Aged and Older Adults in China

Objectives: This study investigates the longitudinal association between spousal caregiving types and cognitive trajectories among middle-aged and older Chinese adults, with a focus on gender differences. Method: Data from the China Health and Retirement Longitudinal Study (CHARLS) (2011-2018) were analyzed, covering 4568 couples aged 45 and above. Caregiving types were Activities of Daily Living (ADLs) caregiving, Instrumental Activities of Daily Living (IADLs) caregiving, and both ADLs/IADLs caregiving. Cognitive function was assessed using tests of memory, orientation, numeric ability, and visuospatial ability. Latent growth curve modeling was used to examine associations between caregiving types and cognitive trajectories. Results: Spouses who only provided IADLs caregiving had slower cognitive decline compared to those who did not provide caregiving, regardless of gender. However, those who provided ADLs caregiving had faster cognitive decline compared to non-caregivers, especially in women. Discussion: These findings highlight the importance of caregiving types as well as the gendered effects of caregiving on cognitive trajectories.