Document Classification

Section Type: RESULTS

Text: In multivariable models, factors associated with higher risk of thrombosis were pulmonary atresia with intact ventricular septum (hazard ratio [HR] : 3. 64, 95 % confidence interval [CI] : 1. 04 to 12. 70, p = 0. 04), pulmonary artery distortion (HR : 2. 35, 95 % CI : 0. 96 to 5. 73, p = 0. 06), lower pre-operative unconjugated bilirubin (HR : 0. 84 mol/l, 95 % CI : 0. 72 to 0. 99, p = 0. 04), use of central venous lines for > 10 days or until hospital discharge (HR : 17. 8, 95 % CI : 3. 97 to 79. 30, p < 0. 001), and lower FiO (2) 24 h after the procedure (HR : 0. 67 / 10 %, 95 % CI : 0. 45 to 1. 00, p = 0. 06).