Omega-3 index improves upon the pooled cohort equation in predicting risk for CVD

Area of Science:

• Cardiology
• Preventive Medicine
• Biomarkers

Background:

• Accurate prediction of atherosclerotic cardiovascular disease (ASCVD) is vital for patient risk stratification.
• The Pooled Cohort Equation (PCE) is a standard tool, but its predictive accuracy for 10-year ASCVD risk is limited.

Purpose of the Study:

• To evaluate the omega-3 index (O3I) as a biomarker to improve ASCVD risk prediction.
• To determine if O3I enhances the predictive capability of the PCE.

Main Methods:

• The omega-3 index (O3I) was measured in 2550 participants from the Framingham Offspring Cohort.
• Area under the curve (AUC) analysis assessed the O3I's contribution to PCE predictions.
• O3I's added predictive power was evaluated with standard risk factors (blood pressure, diabetes, cholesterol, smoking).

Main Results:

• The PCE's AUC for predicting 10-year ASCVD events was 0.689.
• Adding the O3I to the PCE increased the AUC to 0.698 (P < .05).
• O3I significantly improved the predictive ability of individual risk factors when added to a basic age+sex+race model.

Conclusions:

• The omega-3 index (O3I) enhances ASCVD risk prediction beyond traditional factors assessed by the PCE.
• O3I shows potential as a valuable tool for improving ASCVD risk stratification.
• Further research in diverse populations is recommended to integrate O3I into clinical risk assessment.