Table 2. Process Measure Differences Between the Preimplementation and Postimplementation Phasesa.
| Metric | Preimplementation Phase (n = 898) |
Postimplementation Phase (n = 1522) |
P Value |
|---|---|---|---|
| Time from symptom onset to first medical contact, median (IQR), min | 170 (90-300) | 174.5 (90-310) | .91 |
| Time from first medical contact to ECG, median (IQR), min | 7 (5-13) | 5 (5-10) | .02 |
| Time from ECG to fibrinolysis, median (IQR), min | 30 (10-80) | 25 (15-45) | .19 |
| Time from fibrinolysis to PCI, median (IQR), hb | 39.2 (7.1-109.2) | 17.3 (9.0-23.0) | .003 |
| Door-to-balloon time for primary PCI, median (IQR), minc | 100 (84-143) | 105 (80-145) | .56 |
| Any reperfusion | 795 (88.5) | 1372 (90.1) | .21 |
| Fibrinolytic use | 599 (66.7) | 753 (49.5) | <.001 |
| Fibrinolytic use in spoke health center patientsd | 386 (79.6) | 423 (74.5) | .05 |
| Primary PCI | 196 (21.8) | 619 (40.7) | <.001 |
| Coronary angiography | 314 (35.0) | 925 (60.8) | <.001 |
| Coronary angiography in spoke health center patientsd | 17 (3.5) | 178 (31.3) | <.001 |
| All PCI | 265 (29.5) | 707 (46.5) | <.001 |
| All PCI in spoke health center patientsd | 15 (3.1) | 117 (20.6) | <.001 |
Abbreviations: ECG, electrocardiography; IQR, interquartile range; PCI, percutaneous coronary intervention.
a
Data are presented as number (percentage) of participants unless otherwise indicated.
b
There were 52 patients in the preimplementation phase and 162 in the postimplementation phase.
c
There were 182 patients in the preimplementation phase and 536 in the postimplementation phase.
d
There were 485 patients in the preimplementation phase and 568 patients in the postimplementation phase.