Caregiving and allostatic load predict future illness and disability: a population-based study

Publication type

Journal Article

Authors

Publication date

October 15, 2021

Summary:

Background:

Caring for sick or disabled relatives is a key model for understanding the effects of chronic stress on immunity/inflammation; biomarkers which are part of an index of allostatic load. Here, we examine whether caring and allostatic load are predictive of future illness/disability and if the association between caring and illness/disability is mediated by allostatic load.
Method:

Using data from the Understanding Society Wave 2 (2011) and Wave 9 (2017–2019) datasets in the UK, a sample of 471 of caregivers and 2,151 non-caregivers (all initially healthy) were compared on allostatic load and future illness/disability.
Results:

Caregivers had higher allostatic risk scores, for total as well as immune and non-immune biomarkers, and were more likely (23.3% vs 17.4%) to have an illness/disability in the future compared to non-caregivers. Moreover, caregiving was responsible for a 33% future illness/disability risk. Further, allostatic load was also predictive of excess risk (OR ​= ​1.18, 95% CI ​= ​1.08 – 1.26; p ​< ​.001); higher allostatic load was associated with increased risk of illness/disability in the future. In an unadjusted mediation model, allostatic load mediated the association between caregiving and future illness/disability. However, after controlling for confounding, the mediation became non-significant.
Conclusions:

These results confirm that caregiving and allostatic load are damaging for future health. Results are also discussed in relation to public health aspects of caregiving.

Published in

Brain, Behavior, & Immunity - Health

Volume

Volume: 16:100295

DOI

https://doi.org/10.1016/j.bbih.2021.100295

ISSN

26663546

Subjects

Notes

Open Access

Under a Creative Commons license


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