|Overall (N = 549)||Hospital Tertiles of Early Angiography∗||p Value for Difference|
|Low (21.7%–52.0%) (n = 183)||Middle (52.2%–64.2%) (n = 183)||High (64.2%–100.0%) (n = 183)|
|Academic hospital, %†||16.6||21.9||18.0||9.8||0.006|
|PCI capabilities but no CABG capabilities, %||22.6||23.5||21.3||23.0||0.87|
|Rural hospital (vs. urban/suburban)||17.9||14.2||17.5||21.9||0.16|
|NSTEMI annual volume (patients per year)||135.5 (81.9–206.3)||151.4 (90.2–226.6)||142.7 (75.8–216.0)||123.3 (74.4–183.9)||0.010|
|Number of hospital beds||305.5 (200.0–445.5)||331.5 (217.0–462.0)||325.0 (193.0–476.0)||273.0 (192.0–391.0)||0.023|
|Defect-free care score, %‡||76.3 (59.7–87.2)||68.6 (50.8–82.6)||77.5 (60.6–86.5)||81.2 (64.5–89.5)||<0.001|
Values are median (interquartile range) unless otherwise indicated.
Abbreviations as in Tables 1 and 3.
↵∗ Range depicts the hospital-level use of early (≤24 h) angiography across each tertile.
↵† Academic hospital is defined as membership in the Council of Teaching Hospitals.
↵‡ The defect-free care score is a composite quality performance measure based on American Heart Association/American College of Cardiology guidelines for treatment of non–ST-segment elevation myocardial infarction (NSTEMI) patients. The score includes aspirin on arrival, aspirin prescribed at discharge, beta-blocker prescribed at discharge, statin prescribed at discharge, evaluation of left ventricular systolic function, angiotensin-converting enzyme inhibitor or angiotensin receptor blocker for left ventricular systolic dysfunction at discharge, time to fibrinolytic therapy ≤30 min (not included in the defect-free care score in our analysis population), time to balloon ≤90 min (not included in the defect-free care score in our analysis population), reperfusion therapy (not included in the defect-free care score in our analysis population), adult smoke cessation advice counseling, cardiac rehabilitation patient referral from an inpatient setting. The numbers summarized here are the hospital-level percentage of NSTEMI patients receiving defect-free care.