Baseline characteristics of cases and controls at time of index PCI
| Cases (n=23) | Controls (n=40) | p Value | |
|---|---|---|---|
| no./total no. (%) | no./total no. (%) | ||
| Clinical characteristics | |||
| Female | 4/23 (17.4) | 5/40 (12.5) | 0.59 |
| Age (years) | 53.1±8.6 | 56.8±10.1 | 0.16 |
| Body mass index (kg/m2) | 27.1±3.7 | 26.7±3.4 | 0.69 |
| Current smoking | 16/22 (72.7) | 16/40 (40.0) | 0.014 |
| Hypertension | 10/23 (43.5) | 9/39 (23.1) | 0.092 |
| Diabetes mellitus | 3/23 (13.0) | 4/40 (10.0) | 0.71 |
| Hypercholesterolaemia | 12/23 (52.2) | 14/36 (38.9) | 0.32 |
| Family history of CAD | 16/22 (72.7) | 23/40 (57.5) | 0.24 |
| Medical history | |||
| Prior MI | 7/23 (30.4) | 9/40 (22.5) | 0.49 |
| Prior PCI | 5/23 (21.7) | 9/40 (22.5) | 0.94 |
| Prior CABG | 0/23 (0.0) | 1/40 (2.5) | 0.45 |
| Malignancy | 0/23 (0.0) | 3/40 (7.5) | 0.18 |
| LVEF | |||
| >45% | 16/18 (88.9) | 21/27 (77.8) | 0.17 |
| 30%–45% | 1/18 (5.6) | 6/27 (22.2) | |
| <30% | 1/18 (5.6) | 0/27 (0.0) | |
| Indication | |||
| Stable angina | 7/23 (30.4) | 16/40 (40.0) | 0.60 |
| UAP/NSTEMI | 7/23 (30.4) | 8/40 (20.0) | |
| STEMI | 9/23 (39.1) | 16/40 (40.0) | |
| Angiographic data | |||
| Culprit vessel | |||
| RCA | 7/23 (30.4) | 15/40 (37.5) | 0.077 |
| LAD | 15/23 (65.2) | 16/40 (40.0) | |
| RCX | 1/23 (4.3) | 9/40 (22.5) | |
| Procedural characteristics | |||
| BMS | 7/23 (30.4) | 13/40 (32.5) | 0.92 |
| DES—1st generation | 11/23 (47.8) | 17/40 (42.5) | |
| DES—2nd generation | 5/23 (21.7) | 10/40 (25.0) | |
| Total stent length (mm) | 23 (18–40) | 20 (15–27) | 0.098 |
| Antiplatelet therapy | |||
| GP IIb/IIIa therapy | 4/23 (17.4) | 7/40 (17.5) | 0.99 |
| Aspirin | 20/21 (95.2) | 39/40 (97.5) | 0.64 |
| Clopidogrel | 19/21 (90.5) | 36/40 (90.0) | 0.95 |
Continuous data are presented as mean±SD or median±IQR and group comparison of continuous data was performed using unpaired Student's t test or Mann–Whitney U test. Categorical variables are presented as no./total no. (%), with differences between the groups tested with χ².
BMS, bare metal stents; CABG, coronary artery bypass graft; CAD, coronary artery disease; DES, drug eluting stents; GP, glycoprotein; LAD, left anterior descending; MI, myocardial infarction; NSTEMI, non-ST-segment elevated myocardial infarction; PCI, percutaneous coronary intervention; RCA, right coronary artery; RCX, ramus circumflexus; STEMI, ST-segment elevated myocardial infarction; UAP, unstable angina pectoris.