Research Article
Risk Factors for Acute Hemorrhagic Rectal Ulcer Syndrome and Its Prognosis: A Density Case-Control Study
Table 1
Patients’ characteristics and bivariate analyses.
| | Variable | Cases | Controls | value |
| | Age (years), mean (SD) | 76 (12) | 60 (15) | <0.0001 | | Sex, male, (%) | 18 (47.4) | 62 (50.4) | 0.85 | | Hospitalization, (%) | 32 (84.2) | 14 (11.4) | <0.0001 | | Hospitalization period (day), mean (SD) | 19.0 (24.4) | 1.0 (4.9) | <0.0001 | | Usage of antithrombotic drugs, (%) | 25 (65.8) | 16 (13.0) | <0.0001 | | Comorbidity | | Hypertension, (%) | 23 (60.5) | 45 (36.6) | 0.014 | | Diabetes mellitus, (%) | 10 (26.3) | 19 (15.5) | 0.15 | | Ischemic heart disease, (%) | 13 (34.2) | 5 (4.1) | <0.0001 | | Cerebral vascular disease, (%) | 17 (44.7) | 8 (6.5) | <0.0001 | | Under hemodialysis, (%) | 4 (10.5) | 3 (2.44) | 0.054 | | Malignancies, (%) | 6 (15.8) | 30 (24.4) | 0.37 | | Laboratory findings | | Serum albumin (mg/dl), mean (SD) | 2.67 (0.60) | 4.09 (0.52) | <0.0001 | | Serum Cr (mg/dl), mean (SD) | 1.35 (1.50) | 1.16 (2.21) | 0.63 | | Serum AST (U/l), mean (SD) | 26.0 (14.6) | 22.8 (9.9) | 0.13 | | Serum ALT (U/l), mean (SD) | 25.3 (19.9) | 23.3 (21.8) | 0.62 | | White blood cell count (cells/μl), mean (SD) | 8013 (4757) | 5959 (2047) | 0.0002 | | Hemoglobin (g/dl), mean (SD) | 9.51 (2.09) | 12.7 (2.06) | <0.0001 | | Platelet count (thousand cells/μl), mean (SD) | 247.3 (132.4) | 236.7 (90.8) | 0.58 |
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SD: standard deviation; AST: aspartate aminotransferase; ALT: alanine aminotransferase.
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