Gastrointestinal Hemorrhage in Warfarin Anticoagulated Patients: Incidence, Risk Factor, Management, and Outcome

Table 3

Incidence of gastrointestinal bleeding in relation to international normalization ratio.

INR*	Events	Patients	Follow-up (months)	Events/patient-years
≤1.0	0	0	112	0
1.0–1.5	6	5	3278	2.1
1.5–2.0	18	14	5412.5	3.9
2.1–2.5	11	9	2874	4.5
2.5–3.0	2	2	887	4.5
>3.0	6	6	503.1	14.3

∗INR: international normalization ratio.