Assessing the impact of caregiving for older parents on caregivers' health: Initial health status and trajectories of physical and mental health among midlife caregivers for parents and parents-in-law in Britain

Assessing the impact of caregiving for older parents on caregivers' health is increasingly important in the context of population changes and curtailment of state provided services. This has been extensively studied but results are inconsistent, possibly reflecting a lack of attention to health-related selection into the caregiver role. We use data from a nationally representative UK longitudinal study to analyse differences in the health of people aged 40-69 at baseline by whether they were 'eligible' to provide parent care (with a living parent/ parent-in-law) and by whether they subsequently assumed a caregiver role. We measured initial health status using a latent variable derived from three observer-recorded indicators as well as self-reported health. We analysed trajectories of physical and mental health over a seven-year follow-up for those providing intensive care (20+ hours per week) to a parent or parent-in-law, providers of lesser amounts of care, and non-caregivers. Outcomes were measured using the SF-12 indicators of mental and physical health. Results: showed that those with a living parent or parent-in-law had better health than those lacking these relatives. However, among potential caregivers for a parent or parent-in-law, those assuming intensive caregiving had poorer initial health than non-caregivers or those who became providers of less intensive care. Fixed effects analyses of follow-up data showed that the mental health of intensive caregivers deteriorated. However, the physical health of intensive caregivers with low levels of education improved. Results: show the importance of taking account of whether people are at risk of providing parental care and initial health status when assessing impacts of caregiving on health. They also indicate differential effects of caregiving on health depending on socio-demographic characteristics and reaffirm the need for greater supports for those providing substantial amounts of care to older parents.