Table 2

Baseline Characteristics for Quartiles of Total Stent Length per Lesion

Quartile 1 (8–18 mm)Quartile 2 (18–20 mm)Quartile 3 (20–27 mm)Quartile 4 (≥27 mm)p Value
n = 1,014 (19.0%)n = 1,601 (31.0%)n = 1,143 (22.0%)n = 1,474 (28.0%)
Age (yrs)68.07 ± 10.2066.28 ± 10.8267.22 ± 10.6867.49 ± 10.300.0002
BMI (kg/m2)27.53 ± 5.1129.20 ± 6.4627.49 ± 5.3027.50 ± 5.65<0.0001
Diabetes mellitus295 (29.1%)527 (32.9%)371 (32.5%)484 (32.8%)0.1625
Insulin-requiring diabetes mellitus87 (29.5%)181 (34.3%)121 (32.6%)136 (28.1%)0.1495
Hypertension734 (72.4%)1,243 (77.6%)871 (76.2%)1,112 (75.4%)0.0230
Hypercholesterolemia678 (66.9%)1,116 (69.9%)776 (68.1%)996 (67.8%)0.4118
Serum creatinine (mg/dl)0.93 ± 0.780.92 ± 0.740.90 ± 0.570.98 ± 0.940.2830
Smoking284 (28.1%)438 (27.4%)327 (28.7%)403 (27.5%)0.8724
Previous MI178 (17.6%)272 (17.1%)189 (16.6%)273 (18.7%)0.5257
Previous PCI214 (21.1%)333 (20.8%)202 (17.7%)295 (20.0%)0.1501
Previous CABG59 (5.8%)87 (5.4%)50 (4.4%)65 (4.4%)0.2520
Left ventricular ejection fraction (%)50.95 ± 23.5056.66 ± 17.0452.69 ± 20.6248.90 ± 23.69<0.0001
ACS478 (47.5%)596 (38.1%)538 (47.8%)573 (39.5%)<0.0001
Type of stent implanted<0.0001
 Biomatrix/Nobori125 (12.3%)80 (5.0%)77 (6.7%)177 (12.0%)
 Endeavor372 (36.7%)491 (30.7%)410 (35.9%)343 (23.3%)
 Resolute46 (4.5%)31 (1.9%)48 (4.2%)67 (4.5%)
 Xience418 (41.2%)907 (56.7%)505 (44.2%)815 (55.3%)
 Yukon Choice53 (5.2%)92 (5.7%)103 (9.0%)72 (4.9%)
Multivessel disease270 (28.7%)435 (29.3%)435 (43.1%)439 (32.9%)<0.0001
Number of lesions treated1.33 ± 0.631.16 ± 0.431.53 ± 0.831.24 ± 0.53<0.0001
Number of stents implanted1.33 ± 0.651.18 ± 0.471.81 ± 1.102.09 ± 1.17<0.0001
Mean stent diameter (mm)3.00 ± 0.413.00 ± 0.412.98 ± 0.372.95 ± 0.360.0125
Total stent length (mm)17.77 ± 10.3221.04 ± 8.1135.97 ± 19.6345.88 ± 23.05<0.0001
Total stent length per lesion (mm)13.13 ± 2.4918.04 ± 0.2123.62 ± 1.6937.58 ± 13.10<0.0001
At least 1 type B2/C lesion389 (41.5%)755 (48.9%)796 (72.8%)1,201 (83.8%)<0.0001
At least 1 lesion with moderate/severe calcifications174 (20.8%)177 (20.0%)240 (25.4%)348 (32.2%)<0.0001
At least 1 bifurcation lesion66 (12.2%)213 (22.0%)104 (18.2%)210 (22.0%)<0.0001

Values are mean ± SD or n (%).

Abbreviations as in Table 1.