Table 1. Estimated Major Amputation, Major Amputation or Death, Event, and Survival Rates
PTA‐BMS (66 Limbs, 64 Patients)DES (74 Limbs, 73 Patients)Overall P Valuea
n% (95% CI)n% (95% CI)
Major amputation rate per limb
0–6 months1320.5 (10.5–30.5)79.8 (2.9–16.7)
0–1 year1320.5 (10.5–30.5)811.4 (4.0–18.8)
0–2 years1524.8 (13.6–36.0)913.2 (5.2–21.2)
0–3 years1524.8 (13.6–36.0)1015.1 (6.5–23.7)
0–4 years1628.0 (15.8–40.2)1015.1 (6.5–23.7)
0–5 years1734.0 (18.1–49.9)1119.3 (7.7–30.9)0.091
Major amputation or death rate per patient
0–6 months1828.1 (17.1–39.1)1520.5 (11.3–29.7)
0–1 year2335.9 (24.1–47.7)2331.5 (20.9–42.1)
0–2 years3351.6 (39.4–63.8)2737.0 (25.8–48.2)
0–3 years3960.9 (48.9–72.9)3345.2 (33.8–56.6)
0–4 years4673.5 (62.3–84.7)3548.3 (36.7–59.9)
0–5 years4979.6 (69.0–90.2)4568.2 (56.0–80.4)0.043
Event rate per patient
0–6 months2031.2 (19.8–42.6)1723.3 (13.7–32.9)
0–1 year2640.6 (28.6–52.6)2635.6 (24.6–46.6)
0–2 years3859.4 (47.4–71.4)3142.5 (31.1–53.9)
0–3 years4367.2 (55.6–78.8)3750.7 (39.1–62.3)
0–4 years5079.0 (68.8–89.2)3953.8 (42.2–65.4)
0–5 years5384.7 (75.5–93.9)4973.8 (62.2–85.4)0.041
Survival rate per patient
0–6 months5484.4 (75.6–93.2)6386.3 (78.5–94.1)
0–1 year4875.0 (64.4–85.6)5575.3 (65.5–85.1)
0–2 years3960.9 (48.9–72.9)4967.1 (56.3–77.9)
0–3 years3353.1 (40.9–65.3)4360.3 (49.1–71.5)
0–4 years2141.8 (29.3–54.3)3455.5 (43.9–67.1)
0–5 years1337.0 (24.3–49.7)1737.7 (25.2–50.2)0.45
  • BMS indicates bare metal stent; DES, drug‐eluting stent; PTA, percutaneous transluminal angioplasty.

  • a Overall log‐rank test.