Table 2.
Distribution of ST depression in various ECG leads segregated according to the infarct-related artery (IRA) in the overall study (n = 54).
| ST depression | LAD | LCX | OM1 | D1 | RI | Total | p value |
|---|---|---|---|---|---|---|---|
| II | 9 (23.7) | 2 (5.3) | 8 (21.1) | 11 (28.9) | 8 (21.1) | 38 | 0.174 |
| III | 11 (20.8) | 4 (7.5) | 12 (22.6) | 18 (34.0) | 8 (15.1) | 53 | 0.758 |
| avF | 10 (18.9) | 4 (7.5) | 12 (22.6) | 19 (35.8) | 8 (15.1) | 53 | 0.408 |
| avR | 1 (16.7) | 2 (33.3) | 0 (0) | 1 (16.7) | 2 (33.3) | 6 | 0.042∗ |
| V1 | 2 (10.0) | 2 (10.0) | 7 (35) | 3 (15.0) | 6 (30.0) | 20 | 0.012∗ |
| V2 | 1 (4.5) | 2 (9.1) | 9 (40.9) | 3 (13.6) | 7 (31.8) | 22 | <0.001∗ |
| V3 | 3 (11.1) | 2 (7.4) | 9 (33.9) | 5 (18.5) | 8 (29.6) | 27 | 0.002∗ |
| V4 | 3 (11.5) | 2 (7.7) | 8 (30.8) | 6 (23.1) | 7 (26.9) | 26 | 0.031∗ |
| V5 | 3 (15.8) | 2 (10.5) | 5 (26.3) | 6 (31.6) | 3 (15.8) | 19 | 0.904 |
| V6 | 4 (21.1) | 1 (5.3) | 5 (26.3) | 6 (31.6) | 3 (15.8) | 19 | 0.970 |
LAD: left anterior descending; LCX: left circumflex; OM1: first obtuse marginal; D1: first diagonal artery; RI: ramus intermedius; PCI: percutaneous coronary intervention. ∗Statistically significant.