Research Article
Gastrointestinal Hemorrhage in Warfarin Anticoagulated Patients: Incidence, Risk Factor, Management, and Outcome
Table 1
Demographic data of patients treated with warfarin.
| Variables | Patients without GIB* () | Patients with GIB* () | value |
| Age (year) | | | <0.001 | Male | 215 | 19 | 0.5 | Smoking | 101 (27.6%) | 10 (27.7) | 1.0 | Alcohol | 73 (20.0%) | 6 (16.6%) | 0.6 | Indications for warfarin | | | | Deep vein thrombosis | 63 (17.2%) | 8 (22.2%) | 0.5 | Pulmonary embolism | 28 (7.6%) | 3 (8.3%) | 0.9 | Valvular replacement | 138 (37.8%) | 10 (27.7%) | 0.2 | Atrial fibrillation | 81 (22.1%) | 8 (22.2%) | 1.00 | Others | 55 (15.0%) | 7 (19.4%) | 0.5 | Platelet count (K/cumm) | | | 0.9 | Mean INR* value | | | 0.01 | History of GIB | 12 (3.2%) | 5 (13.8%) | 0.003 | Comorbidity | | | | Hypertension | 200 (54.8%) | 22 (61.1%) | 0.5 | Cardiovascular disease | 62 (16.9%) | 6 (16.6%) | 1.0 | Pulmonary disease | 32 (8.7%) | 6 (16.6%) | 0.1 | Cirrhosis | 1 (0.2%) | 3 (8.3%) | <0.001 | Renal insufficiency | 27 (7.3%) | 4 (11.1%) | 0.4 | Malignancy | 38 (10.4%) | 5 (13.9%) | 0.6 | Septic shock | 2 (0.5%) | 3 (8.3%) | <0.001 | Concomitant medication | | | | NSAID | 6 (1.6%) | 2 (5.5%) | 0.1 | Aspirin | 46 (12.6%) | 4 (11.1%) | 0.8 | Clopidogrel | 30 (8.2%) | 1 (2.7%) | 0.2 | Dipyridamole | 22 (6.0%) | 5 (13.8%) | 0.07 | Steroids | 25 (6.8%) | 4 (11.1%) | 0.3 |
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INR: international normalization ratio. GIB: gastrointestinal bleeding. NSAID: nonsteroidal anti-inflammatory drug.
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