Childhood Bullying as a Risk Factor for Late-Life Psychological Distress and Cognitive Impairment
Mejia-Guevara, I.; Periyakoil, V.
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In the United States, non-Hispanic Black (19%) older adults are more likely to develop dementia than White older adults (10%). As genetics alone cannot account for these differences, the impact of historical social factors is considered. This study examined whether childhood and late-life psychological distress associated with dementia risk could explain part of these disparities. Using longitudinal data from 379 White and 141 Black respondents from the Panel Study of Income Dynamics, we assessed the association between childhood bullying and late-life dementia risk, testing for mediation effects from late-life psychological distress. Mediation analysis was computed via negative binomial regression modeling, stratified by race (White/Black), type of bullying experience (target, bully, and bully-target), and the age range at which the experience occurred (6-12, 13-16). The results indicated that late-life psychological distress fully mediated the association between Black respondents who were bullies and dementia risk. However, no significant association was observed among White respondents. These results suggest that interventions aimed at preventing and treating psychological distress throughout the lifespan could be crucial in mitigating the development and progression of dementia risk.
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