Table 1 The characteristics of included patients
Variables | ISR group (n = 64) | No-ISR group (n = 145) | t/χ2 | p |
|---|---|---|---|---|
Male/female | 42/22 | 97/48 | 1.204 | 0.117 |
Age (years) | 65.39 ± 8.91 | 64.04 ± 9.12 | 7.226 | 0.052 |
Hypertension | 43 (67.19%) | 55 (37.93%) | 1.127 | 0.009 |
Diabetes | 36 (56.25%) | 59 (40.69%) | 1.014 | 0.037 |
History of smoke | 22 (34.38%) | 49 (33.79%) | 1.205 | 0.089 |
History of drinking | 19 (29.69%) | 40 (27.59%) | 1.184 | 0.092 |
Number of coronary artery lesions | Â | Â | Â | Â |
 One artery | 25 (39.06%) | 96 (66.21%) | 1.947 | 0.022 |
 Two arteries | 24 (37.50%) | 44 (30.34%) |  |  |
 Three arteries | 15 (23.44%) | 5 (3.45%) |  |  |
Reasons for stent implantation | Â | Â | Â | Â |
 Stable angina | 12 (18.75%) | 25 (17.24%) | 1.374 | 0.016 |
 Unstable angina | 36 (56.25%) | 44 (30.34%) |  |  |
 Acute myocardial infarction | 16 (25%) | 76 (52.42%) |  |  |
 Number of implanted stents (n) | 2.31 ± 1.05 | 2.01 ± 1.10 | 1.294 | 0.117 |
The diameter of stent | Â | Â | Â | Â |
 < 3 mm | 38 (59.38%) | 61 (42.07%) | 1.331 | 0.028 |
 ≥ 3 mm | 26 (40.62%) | 84 (57.93%) |  |  |
The length of stent | Â | Â | Â | Â |
 ≤ 20 mm | 4 (6.25%) | 58 (40%) | 1.097 | 0.034 |
 > 20 mm | 60 (93.75%) | 87 (60%) |  |  |
Stent position | Â | Â | Â | Â |
 Left anterior descending artery | 36 (56.25%) | 54 (37.24%) | 1.164 | 0.027 |
 Left circumflex artery | 8 (12.50%) | 32 (22.07%) |  |  |
 Right coronary artery | 20 (31.25%) | 59 (40.69%) |  |  |
Take antiplatelet drugs regularly | 37 (57.81%) | 80 (55.17%) | 1.089 | 0.085 |