Background: Regular physical activity (PA) offers numerous benefits, decreasing all-cause mortality (ACM) among the general population. However, its impact on individuals with depression remains unknown. The present study aimed to investigate the correlation between various PA levels and ACM among adult patients with depression in the United States.
Methods: Data from the National Health and Nutrition Examination Survey from 2007 to 2018, as well as relevant mortality data up to December 31, 2018 were extracted. 4850 adults with depression were incorporated into this cohort study. PA level was quantified based on weekly metabolic equivalent of task (MET-min/week) and categorized into four groups according to the Physical Activity Guidelines for Americans. Weighted Cox proportional-hazards models were leveraged to assess the association of different PA levels with ACM among adults with depression, and adjustments were made for various sociodemographic and health factors.
Results: Among the 4850 patients with depression, 503 deaths were noted over a median follow-up of 6.6 years. The weighted Cox regression analysis showed that participants with high-level PA (>1200 MET-min/week) had a markedly lower risk of ACM (HR = 0.48, 95 % CI 0.33 to 0.68) compared to those with no PA (0 MET-min/week). The benefit conferred by the high-level PA group (HR = 0.65, 95CI 0.45 to 0.94) remained significant (p < 0.05) after adjustment for other confounders.
Limitations: PA and some covariates were assessed through self-reported questionnaires.
Conclusion: High-level PA has the most pronounced effect on reducing ACM among adult patients with depression, which should be recognized in clinical and public health guidelines.
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| http://dx.doi.org/10.1016/j.jad.2024.05.057 | DOI Listing |
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