The 14-day risk of all-cause death, new/recurrent MI, or severe ischemia requiring urgent revascularization. Low (0–2): ~5–8%, Moderate (3–4): ~13–20%, High (5–7): ~26–41%.

Scores ≥ 3 favor an early invasive strategy (catheterization within 24–72h). Lower scores may be managed conservatively with medical therapy and stress testing.

Family history of CAD, hypertension, diabetes, hypercholesterolemia, and current smoking. Having ≥3 of these adds 1 point.