Purpose in life and mortality: A meta-analysis of the published literature and individual-participant data of 488,765 participants followed for up to 32 years.
Level 3 - non-randomized controlled study
Systematic review and individual-participant data meta-analysis of prospective observational cohort studies
PubMed 42417009 · doi:10.1017/S0033291726104863
What was done
A random-effects meta-analysis combining individual-participant data from 8 ongoing longitudinal studies with published findings from a systematic review (17 samples from 14 publications) was conducted. The total dataset comprised 488,765 participants from the United States, Europe, and Asia, with 48,928 deaths and up to 32 years of follow-up, evaluating the association between purpose in life and mortality.
What was found
Purpose in life was associated with approximately 30% lower risk of earlier mortality (meta-analytic HR = 0.76, 95% CI: 0.70 to 0.83). The association persisted across sociodemographic groups, with slight differences by age, race, and education. The association remained statistically significant after adjusting for behavioral and clinical mortality risk factors (HR = 0.85, 95% CI: 0.82 to 0.89) or depression (HR = 0.91, 95% CI: 0.88 to 0.94).
Why it matters
This synthesis demonstrates a robust, generalizable link between higher purpose in life and reduced mortality across global cohorts that is only partially mediated by standard clinical, behavioral, and psychological risk factors.
Limits
All included studies were observational cohorts, precluding causal inference. The abstract does not report specific scales used to measure purpose in life, statistical heterogeneity metrics, or cause-specific mortality outcomes.
Cited by
- supports Individuals who have a sense of purpose live longer.