Table 1

Baseline Patient Characteristics

Proximal LAD (N = 2,534 Patients, N = 3,871 Lesions)Nonproximal LAD (N = 6,172 Patients, N = 8,419 Lesions)p Value
Age (yrs)61.8 ± 10.8 (2,534)62.3 ± 10.5 (6,172)0.047
Body mass index (kg/m2)27.6 ± 4.5 (2,532)27.9 ± 4.5 (6,171)0.003
Male76.0% (1,926/2,534)76.5% (4,719/6,172)0.657
History of smoking52.8% (1,339/2,534)59.5% (3,675/6,172)<0.001
Current smoker21.6% (547/2,534)26.5% (1,635/6,172)<0.001
Diabetes mellitus26.9% (682/2,534)28.0% (1,726/6,172)0.329
Insulin dependent6.5% (164/2,534)7.2% (444/6,172)0.247
Hypertension61.9% (1,568/2,534)64.9% (4,003/6,172)0.009
Hyperlipidemia60.1% (1,523/2,534)63.3% (3,904/6,172)0.006
Premature coronary artery disease in a first-degree relative33.6% (732/2,180)34.8% (1,867/5,358)0.297
Previous MI19.3% (489/2,534)21.1% (1,302/6,172)0.062
Previous coronary artery bypass graft surgery1.9% (47/2,534)6.1% (376/6,172)<0.001
Previous percutaneous coronary intervention9.5% (240/2,534)13.8% (849/6,172)<0.001
Previous stroke3.0% (77/2,534)3.1% (192/6,172)0.892
Procedure indication<0.001
 All (acute) MI25.1% (635/2,534)26.2% (1,618/6,172)
 STEMI9.8% (249/2,534)8.0% (491/6,172)
 Non-STEMI15.2% (386/2,534)18.3% (1,127/6,172)
 Unstable angina21.3% (539/2,534)17.8% (1,099/6,172)
 Stable angina48.8% (1236/2,534)48.9% (3,020/6,172)
 Silent ischemia4.9% (124/2,534)7.0% (435/6,172)
Left ventricular ejection fraction (%)57.8 ± 13.2 (1,314)58.8 ± 12.3 (3,174)0.019
Serum creatinine (μmol/l)86.9 ± 28.6 (2,364)88.4 ± 37.5 (5,785)0.053
Complex patients63.3% (1,605/2,534)55.9% (3,449/6,172)<0.001

Values are mean ± SD (N) or % (n/N).

LAD = left anterior descending; MI = myocardial infarction; STEMI = ST-segment elevation myocardial infarction.