Table 3. Detailed information from ECG after primary PCI.
| fQRS (+) group (n = 126) | fQRS (–) group (n = 90) | p value | |
| Delta PR interval, ms | -1.2 ± 4.4 | -1.3 ± 4.1 | 0.958 |
| Delta QRS duration, ms | -4.7 ± 10.8 | -6.4 ± 13.5 | 0.024 |
| Delta QTc interval, ms | -2.7 ± 8.4 | -3.3 ± 9.1 | 0.174 |
| Percentage of total ST resolution (%) | 48 ± 44 | 63 ± 28 | 0.008 |
| Presence of Q Wave, n (%) | 119 (94.4) | 67 (74.4) | < 0.001 |
| fQRS on anterior leads, n (%) | 74 (58.73) | - | - |
| fQRS on inferior leads, n (%) | 52 (41.27) | - | - |
| fQRS ≥ 3 leads, n (%) | 52 (41.27) | - | - |
| fQRS ≥ 3 on anterior leads, n (%) | 43 (58.11) | - | - |
Mean values (standard deviation) and % (n) were reported for continuous and categorical variables, respectively.
fQRS, fragmented QRS; PCI, percutaneous coronary intervention.