Table 3. Clinical outcomes by total stent length.
| Variables | Total stent length (mm) | Unadjusted | Multivariate adjusted | Adjusted by inverse probability of treatment weights (IPTW) | |||||
| ≤40 (N=8,035) | >40 (N=1,182) | HR | p-value | HR | p-value | HR | p-value | ||
| Target lesion failure | 369 (4.6%) | 102 (8.6%) | 1.92 (1.54-2.39) | <0.001 | 1.76 (1.40-2.21) | <0.001 | 1.88 (1.67-2.13) | <0.001 | |
| Death | Cardiac death | 207 (2.6%) | 54 (4.6%) | 1.81 (1.34-2.44) | <0.001 | 1.61 (1.17-2.20) | 0.003 | 1.43 (1.20-1.70) | <0.001 |
| Non-cardiac death | 131 (1.6%) | 33 (2.8%) | 1.75 (1.19-2.56) | 0.004 | 1.44 (0.95-2.17) | 0.085 | 1.35 (1.08-1.69) | 0.009 | |
| Myocardial infarction | All MI | 61 (0.8%) | 14 (1.2%) | 1.53 (0.80-2.94) | 0.200 | 1.38 (0.71-2.68) | 0.350 | 1.36 (0.99-1.86) | 0.060 |
| Target vessel MI | 32 (0.4%) | 9 (0.8%) | 1.95 (0.93-4.09) | 0.076 | 1.79 (0.81-3.97) | 0.149 | 2.10 (1.38-3.22) | <0.001 | |
| Non-target vessel MI | 29 (0.4%) | 5 (0.4%) | 1.53 (0.52-4.53) | 0.440 | 1.26 (0.55-2.91) | 0.583 | 0.74 (0.45-1.23) | 0.244 | |
| Revascularisation | Any revascularisation | 493 (6.1%) | 111 (9.4%) | 1.58 (1.29-1.94) | <0.001 | 1.47 (1.18-1.83) | 0.001 | 1.58 (1.41-1.76) | <0.001 |
| Clinically driven TLR | 171 (2.1%) | 52 (4.4%) | 2.13 (1.56-2.91) | <0.001 | 2.03 (1.47-2.80) | <0.001 | 2.54 (2.14-3.01) | <0.001 | |
| Clinically driven TVR | 238 (3.0%) | 64 (5.4%) | 1.89 (1.43-2.49) | <0.001 | 1.82 (1.36-2.42) | <0.001 | 2.21 (1.91-2.57) | <0.001 | |
| POCO | 823 (10.2%) | 193 (16.3%) | 1.65 (1.41-1.93) | <0.001 | 1.45 (1.23-1.71) | <0.001 | 1.48 (1.36-1.61) | <0.001 | |
| Definite or probable stent thrombosis | 36 (0.4%) | 12 (1.0%) | 2.30 (1.19-4.41) | 0.013 | 2.17 (1.10-4.28) | 0.026 | 2.20 (1.51-3.20) | <0.001 | |
| Adjusted for the following covariates: age, DM, hypertension, dyslipidaemia, PVD, CKD, current smoker, AMI, previous MI, previous CHF, previous CVA, left main disease, bifurcation lesion, tortuous lesion, calcification lesion, previously treated lesion, and left ventricular dysfunction (EF <40%). AMI: acute myocardial infarction; CHF: congestive heart failure; CKD: chronic kidney disease; CVA: cerebrovascular accident; DM: diabetes mellitus; EF: ejection fraction; MI: myocardial infarction; POCO: patient-oriented composite outcome; PVD: peripheral vascular disease; TLR: target lesion revascularisation; TVR: target vessel revascularisation | |||||||||