The associations of cardiovascular health and all-cause mortality among individuals with depression.

The association between the recently updated cardiovascular health (CVH) assessment algorithm, the Life's Essential 8 (LE8), and all-cause mortality among adults with depression remains unknown. From the National Health and Nutrition Examination Survey (NHANES) spanning 2005-2018, a cohort of 2,935 individuals diagnosed with depression was identified. Their CVH was evaluated through the LE8 score system. The investigation of mortality status utilized connections with the National Death Index up to December 31, 2019. To assess the impact of CVH on mortality risk, Kaplan-Meier survival analysis and Cox proportional hazards models, adjusting for variables related to demographics and socioeconomic status, were applied. Among 2,935 participants, those with higher CVH levels had significantly lower all-cause mortality compared to those with lower CVH levels. Cox regression analyses demonstrated that each 1-point increase in CVH score was associated with a lower risk of all-cause mortality [HR = 0.97, 95%CI:0.96-0.98]. The inverse association between CVH and mortality persisted across different demographic and socioeconomic subgroups. Higher CVH levels were associated with a significantly lower risk of all-cause mortality in individuals with depression. These findings underscore the importance of comprehensive CVH management as part of healthcare strategies for people with depression, suggesting that improving CVH may contribute to longer life expectancy in this vulnerable population.