Overlapping childhood adversity linked to early adult deaths
High family and individual adversity was linked to higher death risk versus low adversity, with a hazard ratio (a relative risk measure) of 7.16.
Limit: Unreported abuse and neglect were missing from adversity measures, potentially underestimating associations with mortality
Edited by Boris Djordjevic · AgingResearch.News
An observational cohort study followed 1,235,519 people of both sexes born in Denmark between 1980 and 2001 who survived to age 16. Researchers used national records to assess childhood health adversity, family adversity and neighborhood deprivation. Health indicators included premature birth, mental-health diagnoses and high hospital use. Family adversity included poverty, bereavement and parental substance abuse. Follow-up from age 16 lasted up to 26 years, reaching age 42, and captured 7,320 deaths.
Each layer was separately linked to higher death risk. The highest relative risk occurred with both high family adversity and individual health adversity versus low adversity: a hazard ratio of 7.16. High hospital use combined with high family adversity was linked to 194 excess deaths per 100,000 person-years—years of follow-up added across participants—compared with low adversity at both layers. This exceeded the sum of the separate associations.
Why it matters
The authors suggested that overlapping childhood adversities may deepen lifelong health inequalities. They called for approaches addressing both individual vulnerabilities and the broader social environment.
Caveats
This observational study cannot establish that adversity caused the deaths. The findings cover people in Denmark who survived to 16 and had complete childhood records, with deaths tracked only through age 42.
From the paper
- Follow-up
We recorded 7320 deaths during a mean follow-up time of 14.4 years (SD = 6.4).
- Result
… we show that perinatal adversity (hazard ratio (HR): 1.36; 95% CI (1.28; 1.43), corresponding to 14 (11; 17) excess deaths per 100,000 person-years (PY)), a mental-health diagnosis (HR: 3.00; 95% CI (2.82; 3.19); 68 (62; 73) excess deaths per 100,000 PY) …
Quoted word for word from the full text on PubMed Central.
The paper
University of Copenhagen
The Lancet Regional Health Europe, Sep 16, 2026, Open access
