Life's Essential 8 and Reduced Heart Failure Risk: Insights from Kailuan Study
Overview
The Kailuan study demonstrates that higher and improving Life's Essential 8 (LE8) scores are associated with significantly lower risks of incident heart failure (HF). LE8 trajectory patterns over 8 years effectively predict HF risk, with sustained high LE8 scores conferring the greatest protective effect.
Background
Heart failure prevalence is rising globally, especially in middle- and low-income countries, imposing substantial healthcare burdens. Individual cardiovascular risk factors such as smoking, hypertension, and elevated blood pressure are known to increase HF risk. The American Heart Association's Life's Essential 8 (LE8) integrates behavioral and metabolic factors to assess cardiovascular health comprehensively. Prior guidelines emphasize healthy lifestyle adoption to reduce HF incidence, but large-scale longitudinal data on combined risk factor trajectories have been limited.
Data Highlights
LE8 Trajectory Pattern
Proportion (%)
Adjusted HR (95% CI) vs Moderate-Decreasing
Low-stable
10.01
1.78 (1.39, 2.28)
Moderate-increasing
13.27
0.73 (0.54, 0.99)
Moderate-decreasing
23.86
Reference
Moderate-stable
39.24
0.43 (0.34, 0.55)
High-stable
13.63
0.36 (0.22, 0.56)
Incident HF cases: 461 over median 6.71 years; incidence rate 1.96 per 1000 person-years.
Key Findings
LE8 includes four behavioral (diet, physical activity, smoking, sleep) and four metabolic (BMI, non-HDL cholesterol, fasting glucose, blood pressure) factors.
Five distinct LE8 trajectory patterns were identified over 8 years, with high-stable and moderate-stable trajectories linked to the lowest HF risk.
Compared to moderate-decreasing trajectory, high-stable LE8 trajectory reduced HF risk by 64% (HR 0.36), while low-stable increased risk by 78% (HR 1.78).
LE8 trajectory predicted HF risk more accurately than single time-point LE8 status, especially in participants younger than 55 years.
Higher annual increases in LE8 scores were associated with lower HF incidence.
Study limitations include predominance of male participants (70%) and lack of HF subtype classification by ejection fraction.
Clinical Implications
Monitoring and promoting sustained improvements in Life's Essential 8 factors can substantially reduce heart failure risk, highlighting the importance of integrated lifestyle and metabolic risk management in primary prevention. Clinicians should encourage patients to adopt and maintain multiple healthy behaviors and control metabolic parameters over time to maximize cardiovascular benefits.
Conclusion
The Kailuan study reinforces that maintaining or improving Life's Essential 8 scores over time is strongly associated with reduced incident heart failure risk. These findings support comprehensive cardiovascular health strategies emphasizing combined lifestyle and metabolic risk factor control.
