Research Article

Long-Term Efficacy and Safety of Everolimus-Eluting Stent Implantation in Japanese Patients with Acute Coronary Syndrome: Five-Year Real-World Data from the Tokyo-MD PCI Study

Table 4

Univariate and multivariate analysis for the safety endpoint (the composite of all-cause death or myocardial infarction) from 1 to 5 years.

Univariate Cox proportional hazard modelMultivariate Cox proportional hazard model
HR (95% CI) valueHR (95% CI) value

ACS versus SCAD1.058 (0.789–1.418)0.706
Age ≥80 years2.192 (1.606–2.992)<0.0012.079 (1.511–2.860)<0.001
Male1.099 (0.793–1.522)0.571
Current smoker0.735 (0.501–1.077)0.114
Hypertension1.283 (0.922–1.786)0.140
Dyslipidemia0.615 (0.447–0.846)0.0030.749 (0.456–1.231)0.254
Diabetes mellitus1.189 (0.903–1.564)0.217
Chronic kidney disease without hemodialysis1.931 (1.412–2.641)<0.0011.747 (1.244–2.454)0.001
Chronic kidney disease with hemodialysis3.966 (2.731–5.759)<0.0013.000 (1.931–4.661)<0.001
Left ventricular ejection fraction <35%2.931 (1.866–4.604)<0.0012.158 (1.345–3.464)<0.001
Peripheral artery disease2.663 (1.897–3.739)<0.0011.992 (1.384–2.868)<0.001
History of stroke1.645 (1.110–2.473)0.0131.221 (0.815–1.831)0.333
History of myocardial infarction1.307 (0.982–1.739)0.067
Previous percutaneous coronary intervention1.150 (0.869–1.521)0.329
Previous coronary artery bypass grafting1.595 (1.005–2.530)0.0470.921 (0.567–1.497)0.741
Triple vessel disease1.625 (1.146–2.303)0.0061.252 (0.873–1.797)0.222
Cardiogenic shock status at procedure4.032 (1.287–12.625)0.0172.984 (0.909–9.792)0.071
Left anterior descending coronary artery0.742 (0.559–0.985)0.0390.777 (0.580–1.041)0.091
Left circumflex coronary artery1.175 (0.839–1.645)0.347
Right coronary artery1.175 (0.883–1.562)0.268
Left main coronary artery1.221 (0.665–2.242)0.519
Type B2/C lesion1.622 (1.112–2.365)0.0121.444 (0.983–2.121)0.061
Restenotic lesion1.095 (0.715–1.676)0.677
Chronic total occlusion0.742 (0.423–1.301)0.297
Ostial lesion1.139 (0.772–1.678)0.510
Bifurcation0.952 (0.688–1.319)0.769
Severe calcification on angiography1.888 (1.401–2.544)<0.0011.183 (0.852–1.642)0.315
Use of 2.5 mm diameter stent0.865 (0.644–1.163)0.337
Total stent length ≥28 mm1.096 (0.812–1.478)0.550
Use of imaging device for stent placement1.064 (0.564–2.009)0.848
Use of anticoagulant agent1.843 (1.309–2.595)<0.0011.428 (1.003–2.035)0.048
Use of statin0.636 (0.467–0.866)0.0040.946 (0.578–1.549)0.826
Use of beta-blocker1.038 (0.789–1.365)0.791
Use of angiotensin-converting enzyme inhibitor0.903 (0.685–1.190)0.470
Use of angiotensin receptor blocker1.084 (0.739–1.588)0.681

Note. ACS: acute coronary syndrome; SCAD: stable coronary artery disease; HR: hazard ratio; CI: confidence interval.