Table 1.
Demographics and comorbidities of patients who underwent CTO-PCI.
| Variable | Failed CTO-PCI (N = 48) | Successful CTO-PCI (N = 252) | p-value | ||
|---|---|---|---|---|---|
| Mean age (±SD) | 67.0 | ±9.1 | 64.4 | ±10.3 | 0.11 |
| N | % | N | % | ||
| Female | 10 | 20.8 | 40 | 15.9 | 0.40 |
| Smoking | 26 | 54.2 | 133 | 52.8 | 0.86 |
| Alcohol consumption | 29 | 60.4 | 112 | 44.6 | 0.045* |
| Hypertension | 36 | 75.0 | 186 | 74.1 | 0.90 |
| Hyperlipidaemia | 36 | 75.0 | 210 | 83.3 | 0.17 |
| Familial hypercholesterolaemia | 0 | 0.0 | 3 | 1.2 | 0.45 |
| Diabetes mellitus | 16 | 33.3 | 84 | 33.3 | 1.00 |
| Diabetes status | 1.00 | ||||
| Diet or no diabetes | 33 | 68.8 | 173 | 69.2 | |
| Insulin | 4 | 8.3 | 21 | 8.4 | |
| Oral | 11 | 22.9 | 56 | 22.4 | |
| Previous myocardial infarction | 22 | 45.8 | 124 | 49.2 | 0.67 |
| Previous PCI | 39 | 81.3 | 209 | 82.9 | 0.78 |
| Previous CABG | 7 | 14.6 | 27 | 10.7 | 0.44 |
| Peripheral artery disease | 14 | 29.2 | 25 | 9.9 | <0.001* |
| Cerebrovascular disease | 8 | 16.7 | 32 | 12.7 | 0.46 |
| Previous stroke or TIA | 4 | 8.3 | 13 | 5.2 | 0.38 |
| COPD | 9 | 18.8 | 27 | 10.7 | 0.12 |
| Malignancy | 9 | 18.8 | 35 | 13.9 | 0.38 |
| Atrial fibrillation | 5 | 10.4 | 31 | 12.3 | 0.71 |
| Heart failure | 17 | 35.4 | 74 | 30.1 | 0.47 |
SD, standard deviation; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft; TIA, transient ischemic attack; COPD, chronic obstructive pulmonary disease. *p < 0.05.