Cardiovascular risk calculators: understanding differences and realising economic implications

Area of Science:

• Cardiology
• Preventive Medicine
• Health Economics

Background:

• Global cardiovascular risk assessment is crucial for primary prevention of cerebro-cardiovascular diseases.
• Risk stratification for individuals without prior history guides intervention intensity, but significant variability exists.
• National guidelines, like Italy's, link statin reimbursement to specific risk thresholds (e.g., >20%).

Purpose of the Study:

• To investigate the variability of cardiovascular risk calculators.
• To assess the impact of different risk calculators on patient stratification and potential interventions.
• To estimate the economic implications of using diverse risk assessment tools.

Main Methods:

• Conducted a comprehensive literature and web review to identify available cardiovascular risk calculators.
• Performed a simulation study applying multiple calculators to identical patient profiles.
• Analyzed the discrepancies in risk scores generated by different tools.

Main Results:

• A wide array of cardiovascular risk calculators were identified, exhibiting substantial differences.
• Simulation demonstrated that applying various calculators to the same individual can produce significantly divergent risk assessments.
• These discrepancies have notable economic consequences, particularly concerning medication reimbursement.

Conclusions:

• The heterogeneity among cardiovascular risk calculators poses challenges for consistent clinical decision-making.
• Standardization or clear guidance on calculator selection is needed to ensure equitable and effective primary prevention strategies.
• Addressing calculator variability is essential for optimizing healthcare resource allocation and patient management.