Table 1.
Statistics from door-to-ECG, door-to-catheterization lab, and door-to-balloon time in a study examining how mode of transportation affected clinical outcomes in STEMI patients.
| Variable | Mode | Na | Median (IQRb) | p |
|---|---|---|---|---|
| Door-to-ECG | ||||
| EMS | 53 | 5 (2, 6) | 0.005 | |
| Private | 274 | 5 (2, 8) | ||
| Transfer | 128 | 4(2, 6) | ||
| Door-to-catheterization lab arrival | ||||
| EMS | 51 | 45 (28, 69) | < 0.001 | |
| Private | 274 | 74 (55, 96) | ||
| Transfer | 125 | 36 (23, 55) | ||
| D2B | ||||
| EMS | 49 | 70 (48, 89) | < 0.001 | |
| Private | 265 | 81 (64, 105) | ||
| Transfer | 124 | 62 (46, 77) | ||
D2B, door-to-balloon; ECG, electrocardiogram; EMS, emergency medical services; IQR, interquartile range; STEMI, ST-elevation myocardial infarction.
a
Data were not available for all patients.
b
Interquartile range (first quartile, third quartile).