War-Related Life Course Stress and Late-Life Subjective Age in Northern Vietnam.

Background and Objectives: The role of early life stressors in subjective aging is weakly understood, especially in low- to middle-income countries. This paper investigated how early life stressors encountered in armed conflict influence subjective age among Vietnamese older adults who experienced war over decades of their early life. Research Design and Methods: We analyzed survey data from the 2018 Vietnam Health and Aging Study involving 2,447 Vietnamese older adults who encountered diverse war-related stressors in early adulthood. The analytical sample ( Results: We found significant associations between early adulthood war-related stressors and subjective age. Formal military service significantly lessened the relative risk of feeling subjectively old, and more plentiful wartime violence exposures significantly increased the risk of feeling younger than one's chronological age. Violence exposure's effects were both direct and indirect through functional and mental health. Conversely, greater exposure to wartime malevolent conditions (e.g., shortages of clean water and evacuations) and multiple episodes of severe hunger in childhood increased the risk of feeling older, effects both direct and mediated by late-life functional and mental health. Discussion and Implications: Results suggest wartime stressors, especially war's malevolent environments and severe childhood hunger, experienced in many conflict-affected populations globally, have the potential to subjectively "age" survivors. Yet, not all war exposures are equal, and some may yield psychological and socioeconomic resources that support healthy aging.