In our univariate analysis, we identified four parameters that were associated with active bleeding on CTA, including congestive heart failure (OR 2.47, 95% CI 1.04–5.86, p = 0.04), warfarin use (OR 4.76, 95% CI 1.49–15.21, p = 0.008), higher INR (OR 1.33, 1.04–1.69, p = 0.02), and low albumin level (OR 0.37, 95% CI 0.17–0.79, p = 0.01). This evidence concerns the gene ALB and congestive heart failure.