Table 1

Baseline Characteristics for Quartiles of Total Stent Length per Patient

Quartile 1 (8–18 mm)Quartile 2 (18–24 mm)Quartile 3 (24–36 mm)Quartile 4 (≥36 mm)p Value
n = 782 (14.0%)n = 1,706 (32.0%)n = 1,329 (25.0%)n = 1,586 (29.0%)
Age (yrs)67.41 ± 10.4366.22 ± 10.8667.06 ± 10.4367.98 ± 10.30<0.0001
BMI (kg/m2)27.51 ± 5.1428.51 ± 6.3227.99 ± 5.5827.84 ± 5.560.0004
Diabetes mellitus221 (28.3%)549 (32.2%)403 (30.3%)546 (34.4%)0.0117
Insulin-requiring diabetes mellitus60 (27.1%)192 (35.0%)126 (31.3%)156 (28.6%)0.0691
Hypertension544 (69.6%)1,303 (76.4%)1,011 (76.1%)1,199 (75.6%)0.0017
Hypercholesterolemia517 (66.2%)1,188 (69.8%)912 (68.9%)1,054 (66.7%)0.1550
Serum creatinine (mg/dl)0.94 ± 0.880.93 ± 0.840.90 ± 0.500.96 ± 0.840.4193
Smoking219 (28.1%)466 (27.4%)377 (28.5%)434 (27.5%)0.9072
Previous MI131 (16.8%)272 (16.0%)238 (18.0%)297 (18.8%)0.1772
Previous PCI168 (21.5%)356 (20.9%)244 (18.4%)297 (18.8%)0.1389
Previous CABG43 (5.5%)90 (5.3%)57 (4.3%)78 (4.9%)0.5466
Left ventricular ejection fraction (%)52.78 ± 21.8656.49 ± 17.2652.41 ± 20.7947.43 ± 24.86<0.0001
ACS366 (47.1%)674 (40.4%)551 (42.5%)690 (43.8%)0.0143
Type of stent implanted
 Biomatrix/Nobori459 (8.5%)86 (11.0%)79 (4.6%)112 (8.4%)182 (11.5%)
 Endeavor1,616 (29.9%)290 (37.1%)449 (26.3%)529 (39.8%)348 (21.9%)
 Resolute192 (3.6%)30 (3.8%)31 (1.8%)48 (3.6%)83 (5.2%)
 Xience2,816 (52.1%)331 (42.3%)1,047 (61.4%)571 (43.0%)867 (54.7%)
 Yukon Choice320 (5.9%)45 (5.8%)100 (5.9%)69 (5.2%)106 (6.7%)
Multivessel disease108 (15.6%)360 (23.7%)319 (26.8%)792 (58.1%)<0.0001
Number of lesions treated1.01 ± 0.121.02 ± 0.151.15 ± 0.371.86 ± 0.84<0.0001
Number of stents implanted1.03 ± 0.201.05 ± 0.261.36 ± 0.612.75 ± 1.07<0.0001
Mean stent diameter (mm)3.02 ± 0.433.01 ± 0.422.99 ± 0.382.93 ± 0.32<0.0001
Total stent length (mm)12.82 ± 2.3118.85 ± 1.8427.70 ± 2.9654.99 ± 21.42<0.0001
Total stent length per lesion (mm)12.71 ± 2.4018.61 ± 2.1025.48 ± 5.1233.60 ± 15.78<0.0001
At least 1 type B2/C lesion241 (33.3%)802 (48.9%)919 (71.4%)1,315 (85.9%)<0.0001
At least 1 lesion with moderate/severe calcifications117 (18.6%)190 (18.7%)248 (25.1%)384 (34.6%)<0.0001
At least 1 bifurcation lesion41 (10.6%)215 (20.7%)123 (19.2%)214 (21.9%)<0.0001

Values are mean ± SD or n (%).

ACS = acute coronary syndrome(s); BMI = body mass index; CABG = coronary artery bypass grafting; MI = myocardial infarction; PCI = percutaneous coronary intervention.