Sibling support exchange in late adulthood moderates the long-term impact of childhood neglect on psychological outcomes

Abstract

Objectives: Sibling relationships are often the longest-lasting and serve as a source of support and comfort for many older adults. The current study examined the moderating effect of sibling support exchange in the association between childhood maltreatment and mental health outcomes.Method: Using data from the Wisconsin Longitudinal Study (WLS), we analyzed a sample of older adults whose selected sibling was alive across the three data collections (baseline N = 4,041). Longitudinal multilevel regression models were estimated.Results: Key results showed that a history of neglect was associated with decreased psychological well-being, and all three forms of childhood maltreatment were related to increased depressive symptoms. We also found that sibling support exchange mitigated the negative mental health effects of childhood neglect.Conclusion: Our findings suggest that siblings may be uniquely positioned to support older adults who grew up in a neglectful family environment. Older adults may be encouraged to promote resilience by strengthening their sibling relationships.

Keywords: Adult sibling relationships; childhood maltreatment; depressive symptoms; psychological well-being; support exchange.