Table 2.

Univariate analysis of risk factors associated with thrombotic events

	OR (CI 95%)	p
General TE risk factors
≥5 hemolysis Attacks, n (%)	6.90 (0.9–82.0)	0.032
VTE risk factors	OR (CI 95%)	p
Primary wAIHA, n (%)	3.1 (0.9–11.2)	0.047
VTE history, n (%)	3.81 (1.0-14.3)	0.038
Splenectomy, n (%)	7.50 (1.4–44.1)	0.009
ATE risk factors	OR (CI 95%)	p
Age ≥ 80 years at diagnosis, n (%)	8.93 (1.1–68.3)	0.022
≥ 3 CV risk factors, n (%)	8.94 (1.3–70.4)	0.012

ATE: arterial thromboembolism; CI confidence interval, CV: cardiovascular; OR: odds ratio, TE: thrombotic event; VTE: venous thromboembolism