Cumulative social advantage across the lifespan: Examining the convergent and predictive validity of a multidimensional hierarchical construct for health and longevity.

< .001), with a standard deviation increase in cumulative social advantage predicting a 33% reduction in the hazard rate. The ameliorative influence of cumulative social advantage was consistent across sex, race, and education. These findings highlight the complex relationship between social connections and critical health outcomes, emphasizing the importance of considering cumulative social advantage as a potential explanation for understanding individual differences in health across the lifespan. (PsycInfo Database Record (c) 2026 APA, all rights reserved).