Table 1.
Baseline Characteristics of patients
| Baseline Characteristics | All patients (n=1000) | Planar QRS-T angle≤90 (n=388) | QRS-T angle>90 (n=612) |
|---|---|---|---|
| Age | 59.3±10.5 | 58.6±10.8 | 60.6±10.0** |
| Male (%) | 822 (82.2) | 323 (82.7) | 499 (81.5) |
| QRSD (ms) | 91.4±15.3 | 89.8±14.6 | 94.3±16.1* |
| Hypertension n (%) | 554 (55.4) | 207 (53.4) | 347 (56.7)* |
| DM n (%) | 309 (30.9) | 113 (33.4) | 246 (29.2)** |
| Dyslipdemia n (%) | 434 (43.3) | 179 (46.1) | 254 (41.5) |
| Smoking history n (%) | 580 (58.0) | 222 (57.2) | 358 (58.5) |
| Anterior MI n (%) | 485 (48.5) | 165 (42.5) | 320 (52.3)* |
| Interior MI n (%) | 475 (47.5) | 204 (52.6) | 271 (44.3)* |
Notes: Compared with group whose planar QRS-T angle≤90;
*
P<0.05;
**
P<0.01.