Adverse childhood experiences (ACEs) have been associated with worse cognitive health in older adulthood. This study aimed to extend findings on the specificity, persistence, and pathways of associations between two ACEs and cognition by using a comprehensive neuropsychological battery and a time-lagged mediation design.

Participants were 3304 older adults in the Health and Retirement Study Harmonized Cognitive Assessment Protocol. Participants retrospectively reported whether they were exposed to parental substance abuse or experienced parental physical abuse before age 18. Factor scores derived from a battery of 13 neuropsychological tests indexed cognitive domains of episodic memory, executive functioning, processing speed, language, and visuospatial function. Structural equation models examined self-reported years of education and stroke as mediators, controlling for sociodemographics and childhood socioeconomic status.

Parental substance abuse in childhood was associated with worse later-life cognitive function across all domains, in part via pathways involving educational attainment and stroke. Parental physical abuse was associated with worse cognitive outcomes via stroke independent of education.

This national longitudinal study in the United States provides evidence for broad and persistent indirect associations between two ACEs and cognitive aging via differential pathways involving educational attainment and stroke. Future research should examine additional ACEs and mechanisms as well as moderators of these associations to better understand points of intervention.

Adverse childhood experiences (ACE) exhibit long-lasting consequences on later life and are considered as a major public health problem. ACEs can be divided into household dysfunctions, which affect the child indirectly, and direct maltreatment. As a high correlation between ACEs in general is known, we assessed the risk for child maltreatment associated with the occurrence of household dysfunctions. To provide a better understanding for the mechanisms leading to the deleterious sequelae of ACEs, we furthermore assessed whether the long-term consequences of household dysfunction are mediated by child maltreatment and thereby might be targeted by effective child protection programs.

A representative sample of the German population above the age of 14 (N = 2531) was assessed in a cross-sectional observational population-based survey.

The data reveal that mental illness of a household member was associated with significantly increased risks for all child maltreatment subtypes (ORs 4.95–5.55), just as household substance abuse (ORs 5.32–6.98), violence against the mother (ORs 4.43–10.26), incarceration of a household member (ORs 6.11–14.93) and parental separation (OR 3.37–4.87). Child maltreatment partially mediated the association of household mental illness, substance abuse and parental separation with later depression, anxiety, life satisfaction and subjective general health status and completely mediated the associations of intimate partner violence (IPV) and incarceration of a household member with anxiety, depression and subjective health status in adulthood.

ACEs linked to household dysfunction are associated with an increased risk for all subtypes of child maltreatment. The assessed widespread consequences of household dysfunction are mediated by child maltreatment. This underlines the role of prevention of child maltreatment in families with household dysfunction and implies child protection as a priority in any interventions.