Figure 3. Risk-Adjusted In-Hospital Outcomes Among Patients With ST-Segment Elevation Myocardial Infarction at the 3 Levels of Hospitals in China.

Adjustment variables include age, sex, hypertension, diabetes, prior myocardial infarction, prior heart failure, onset-to-arrival time, means of transport, anterior-wall infarction, systolic blood pressure at admission, heart rate at admission, cardiogenic shock at admission, heart failure at admission, cardiac arrest before or at admission, Killip class of heart failure, coronary care unit, coronary catheter laboratory availability, reperfusion therapy, aspirin, P₂Y₁₂- receptor inhibitor, statin, β-blocker, angiotensin-converting enzyme inhibitor or angiotensin receptor blocker, and intra-aortic balloon pump use during hospitalization. OR indicates odds ratio.