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ECG Characteristics by Mode of Transport.
| Total (n=1289)(%) | Self (n=915)(%) | Ambulance (n=384)(%) | P-value | |
|---|---|---|---|---|
| Time-to-ECG (minutes), SD | 53±28 | 47±47 | <0.001 | |
| ED ECG ischemia | 292(22.7) | 190(20.8) | 102(27.1) | 0.02 |
| ST-elevation | 62(4.9) | 39(4.3) | 23(6.2) | 0.20 |
| ST-depression | 69(5.4) | 41(4.5) | 28(7.5) | 0.04 |
| T-wave inversion | 226(17.7) | 148(16.4) | 78(20.9) | 0.05 |
