Table 1.
Baseline clinical and angiographic data (intention-to-treat analysis).a
| Balloon first (n = 49) | Stent first (n = 48) | p | |
|---|---|---|---|
| Coronary risk factors | |||
| Age | 54 ± 11.1 years | 57.3 ± 10.1 years | 0.14 |
| Male gender | 42 (85.7%) | 35 (72.9%) | 0.19 |
| Diabetes mellitus | 14 (28.6%) | 14 (29.2%) | 0.84 |
| Hyperlipidemia | 8 (16.3%) | 6 (12.5%) | 0.62 |
| Smoking | |||
| Current | 15 (30.6%) | 15 (23.1%) | 0.10 |
| Previous | 8 (16.3%) | 9 (18.8%) | |
| Never | 25 (51%) | 31 (64.6%) | |
| Hypertension | 30 (61.2%) | 26 (54.2%) | 0.64 |
| Body mass index | 25.35 ± 3.5 kg/m2 | 25.7 ± 4.8 kg/m2 | 0.67 |
| Family history of coronary artery disease | 11 (22.4%) | 9 (18.8%) | 0.8 |
| Unstable angina | 16 (32.7%) | 17 (35.4%) | 0.77 |
| Coronary artery disease | |||
| Single-vessel disease | 39 (79.6%) | 38 (79.2%) | 1.0 |
| Two-vessel disease | 9 (18.4%) | 9 (18.8%) | |
| Three-vessel disease | 1 (2%) | 1 (2.1%) | |
| Vessel with target lesion | |||
| LAD | 24 (41.4%) | 20 (35.7%) | 0.79 |
| LCx | 14 (24.1%) | 16 (28.6%) | |
| RCA | 20 (34.5%) | 20 (35.7%) | |
| Classification of 1st/2nd stenosis | 49/9 | 48/8 | 0.35/0.20 |
| A | 2 (4.1%)/0 | 5 (10.4%)/1 (12.5%) | |
| B1 | 29 (59.2%)/7 (77.8%) | 23 (47.9%)/3 (37.5%) | |
| B2 | 18 (36.7%)/2 (22.2%) | 20 (41.7%)/4 (50.0%) | |
| Classification of 1st and 2nd stenoses combinedb | 58 | 56 | 0.14 |
| A | 2 (3.4%) | 6 (10.7%) | |
| B1 | 36 (62.1%) | 26 (46.4%) | |
| B2 | 20 (32.8%) | 24 (42.9%) | |
a
All values are mean ± standard deviation or n(%). CAD, coronary artery disease; RCA, right coronary artery; LCx, left circumflex coronary artery; LAD, left anterior descending coronary artery.
b
ACC/AHA task force.