Statistical Analysis
obesity, diabetes, renal insufficiency, claudication
OBESITY, HYPERCHOLESTEROLEMIA, HYPERTENSION
Continuous data are presented as the mean ± standard deviation (range); categorical data are given as the number (percentage). The primary patency rates were estimated using Kaplan–Meier survival analysis; the estimates are given with the 95% confidence interval. Curves were compared using the log-rank test. Sub analyses were performed to evaluate differences in primary patency based on baseline characteristics (smoking history, hypertension, diabetes, renal insufficiency, obesity, hypercholesterolemia), symptom status (claudication vs. CLTI), and presence of total occlusions. The threshold of statistical significance was 