Predictors of survival
Multivariate Cox regression models revealed that the independent predictors for late mortality were the creatinine ≥ 1.8 mg/dl (adjusted HR 2.68; 95% CI 1.21-6.42; p=0.027), hemoglobin < 10 g/dl (adjusted HR 3.38; 95% CI 1.16-9.90; p=0.026), ejection fraction < 30% (adjusted HR 5.67; 95% CI 1.29-24.86) and AAA diameter ≥ 6.0 cm (adjusted HR 2.20; 95% CI 1.01-4.81; p=0.049) (Table 4). Age, gender and symptomatic status of the patient did not interfere the late survival of the patients. For further analysis, follow-up variables such as endoleak presence, endoleak type, reintervention and sac enlargement (> 5 mm) were also assessed by hazard models. Among these covariates, sac enlargement was found to be related with survival only at univariate analysis (HR 3.78, 95% CI 1.15-12.45; p=0.029).