Stærke sociale relationer er forbundet med en 50% højere overlevelsesrate, ifølge en meta-analyse af 148 studier med 308.849 deltagere. Komplekse mål for social integration viste den stærkeste forbindelse til overlevelse, mens enkle indikatorer som at bo alene havde en svagere sammenhæng. Sociale relationer påvirker dødsrisikoen på niveau med etablerede risikofaktorer.
Titel på undersøgelse:
Social Relationships and Mortality Risk: A Meta-Analytic Review.
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Hele abstrakt på originalsprog:
This meta-analytic review examines the impact of social relationships on mortality risk, assessing which aspects are most predictive and what factors may moderate this risk. Analyzing data from 148 studies with 308,849 participants, the findings indicate that individuals with stronger social relationships have a 50% higher likelihood of survival (OR = 1.50, 95% CI 1.42 to 1.59). This effect remained consistent across age, sex, initial health status, cause of death, and follow-up period. However, the strength of the association varied depending on how social relationships were measured (p<0.001). The most robust association was found for complex measures of social integration (OR = 1.91, 95% CI 1.63 to 2.23), while the weakest was observed for binary indicators of residential status, such as living alone versus with others (OR = 1.19, 95% CI 0.99 to 1.44). Data extraction considered participant characteristics, including cause of mortality and pre-existing conditions, as well as study characteristics such as follow-up duration and type of social assessment. These results underscore the significant role of social relationships in predicting longevity, highlighting the importance of integrating social factors into health assessments and interventions.