TABLE 2. Comparison of symptom onset-to-door time (O2D), door-to-balloon time (D2B), and symptom onset-to-balloon time (O2B) for patients with STEMI undergoing primary PCI, before and during COVID-19.

All times are measured in minutes. COVID-19: coronavirus disease 2019, D2B: door-to-balloon, O2B: symptom onset-to-balloon, O2D: symptom onset-to-door, PCI: percutaneous coronary intervention.