Possible risk factor | Case patients (n = 6) | Control patients (N = 12) | Univariate OR (95% CI)a | P |
---|---|---|---|---|
Blood transfusion or the use of blood products | 2 (33.33%) | 5 (41.67%) | 0.70 (0.09–5.43) | 1.000 |
Urinary catheterization | 6 (100.00%) | 12 (100.00%) | … | … |
Hemodialysis | 0 (0.00%) | 0 (0.00%) | … | … |
Venous catheterization | 6 (100.00%) | 6 (50.00%) | … | 0.054 |
Mechanical ventilation | 5 (83.33%) | 8 (66.67%) | 2.50 (0.21–29.26) | 0.615 |
Tracheotomy | 5 (83.33%) | 6 (50.00%) | 5.00 (0.44–56.62) | 0.316 |
Hypertension b | 5 (83.33%) | 5 (41.67%) | 7.00 (0.61–79.87) | 0.152 |
Diabetes | 0 (0.0%) | 1 (8.33%) | … | 1.000 |
Chronic obstructive pulmonary disease | 1 (16.67%) | 0 (0.00%) | … | 0.333 |
Tumor | 0 (0.00%) | 0 (0.00%) | … | … |
Surgery | 4 (66.67%) | 4 (33.33%) | 0.25 (0.03–2.00) | 0.191 |
Medical group | 3 (50.00%) | 7 (58.33%) | 0.71 (0.10–5.12) | 0.738 |