Table 3.

The AVR score

Predictor (BMI ≥30, previous CABG, recent myocardial infarction, BMI <20)	AVR score predicted 30-day mortality (%)	AVR score risk class
None	≤2	I (low risk)
BMI ≥30	2–5	II (mild risk)
Previous CABG	5–15	III (moderate risk)
Recent myocardial infarction	5–15	III (moderate risk)
BMI <20	>15	IV (high risk)
Any combination of BMI ≥30, previous CABG, or recent myocardial infarction	>15	IV (high risk)

AVR aortic valve replacement, BMI body mass index, CABG coronary artery bypass grafting