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Association between C-reactive protein, Life's Essential 8, and mortality in American adults: Insights from NHANES
Xin Li1, Yongxin Zhu1, Tingting Yan1
1Department of Cardiovascular Diseases, The People's Hospital of Chizhou, Chizhou 247100, China.
Objective:
To evaluate the independent, mediating, interactive, and associated effects of C-reactive protein (CRP) and Life's Essential 8 (LE8) on all-cause and cardiovascular mortality.
Methods:
Utilizing data from 10,043 participants in the NHANES 2005-2010, we employed Cox proportional hazards regression models and causal mediation analysis to investigate the joint and interactive effects of Life's Essential 8 (LE8) and C-reactive protein (CRP) on mortality risk.
Results:
During an average follow-up of 137.10 months, there were 1591 all-cause deaths and 485 cardiovascular deaths. Weighted linear regression showed that for patients with low cardiovascular health (CVH), the adjusted β was -0.22 (95 % CI: -0.27 to -0.17) for moderate cardiovascular health (CVH) and -0.36 (95 % CI: -0.43 to -0.30) for high cardiovascular health (CVH). Mediation analysis revealed that C-reactive protein (CRP) mediated 10.43 % of all-cause mortality and 9.20 % of cardiovascular mortality for moderate cardiovascular health (CVH) compared to low cardiovascular health (CVH), and 9.95 % and 8.32 % respectively for high cardiovascular health (CVH) compared to low cardiovascular health (CVH). No significant multiplicative or additive interactions between Life's Essential 8 (LE8) and C-reactive protein (CRP) were found in all-cause mortality or cardiovascular mortality. Individuals with high cardiovascular health (CVH) and the first quartile of C-reactive protein (CRP) had HRs of 0.30 (95 % CI 0.18-0.48) for all-cause mortality and 0.31 (95 % CI 0.13-0.74) for cardiovascular mortality compared to those with low cardiovascular health (CVH) and the fourth quartile of C-reactive protein (CRP).
Conclusion:
These findings suggest that CRP could significantly influence the relationship between cardiovascular health (CVH) and mortality. Interventions that target both lifestyle factors and CRP levels may improve cardiovascular health and potentially lower mortality risks.
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