Caregiver cortisol patterns varied with social circumstances, but most links remained unclear
Among informal caregivers, lower income and older age generally accompanied higher cortisol measurements. Most social-factor findings were inconclusive, and these biological measurements do not establish health outcomes or causal effects.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Among informal caregivers, lower income and older age generally accompanied higher cortisol, the biological stress measure examined in this review. However, findings for most social circumstances were inconclusive, and statistical support varied. The reported associations do not establish that a social factor caused the cortisol pattern or that caregivers experienced a particular health outcome.
The authors identify small samples that may not represent caregivers more broadly, differing study settings and varying cortisol measurement methods. These differences complicate interpretation of the social patterns reported across studies.
The measured outcome was cortisol
The review examined cortisol responses rather than directly establishing illness or emotional well-being. Social support was described as potentially buffering stress-related cortisol changes, but this should be read as a reported relationship rather than a proven intervention effect.
An uneven evidence base
Gender and occupation findings were mixed. Ethnicity, education and psychosocial factors showed more consistent patterns, but few studies addressed them. Consistency within a small evidence base does not resolve the broader uncertainty across social circumstances.
The original publication
Impacts of social determinants of health on cortisol response among informal caregivers in Organization for Economic Cooperation and Development countries: A systematic review.
Li Z, Luo S, Quesnel-Vallée A
Neurosci Biobehav Rev · 2025
- PubMed ID
- 40763877
- Record checked
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