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Table 3 Univariate analysis of risk factors of S. maltophilia infections in the ICU

From: Molecular epidemiology and risk factors of Stenotrophomonas maltophilia infections in a Chinese teaching hospital

Items Patients (n = 30) Control (n = 60) P value OR(95%CI)
Male (sex) 23 (76.7%) 38 (63.3%) 0.263 0.565 (0.208–1.534)
Age (years) 64.8 ± 19.1 65.5 ± 16.9 0.873  
Leukocyte 11.5 ± 5.4 10.9 ± 4.1 0.777  
Neutrophil 9.4 ± 4.9 9.4 ± 3.9 0.767  
Lymphocyte 1.3 ± 0.9 0.9 ± 0.4 0.012  
Monocyte 0.7 ± 0.5 0.5 ± 0.4 0.536  
Albumin 30.6 ± 4.2 28.3 ± 5.7 0.033  
Globulin 29.0 ± 6.4 28.2 ± 7.0 0.286  
Prealbumin 129.0 ± 52.3 124.8 ± 49.9 1.000  
Surgeries 14 (46.7%) 27 (45.0%) 0.496 0.724 (0.286–1.835)
Organ transplantation 5 (16.7%) 9 (15.0%) 0.987 0.990 (0.296–3.310)
Malignant tumor 8 (26.7%) 15 (25.0%) 0.894 0.933 (0.337–2.585)
Hypertension 7 (23.3%) 15 (25.0%) 0.923 0.949 (0.328–2.748)
Diabetes 3 (10.0%) 9 (15.0%) 0.397 0.547 (0.135–2.213)
Pulmonary infection 9 (30.0%) 16 (26.7%) 0.990 1.007 (0.374–2.712)
Cardiopathy 4 (13.3%) 9 (15.0%) 0.841 0.875 (0.238–3.213)
Liver injury 4 (13.3%) 7 (11.7%) 0.972 1.024 (0.272–3.856)
Trachea intubation 12 (40.0%) 21 (35.0%) 0.941 1.036 (0.406–2.640)
Chemotherapy 2 (6.7%) 3 (5.0%) 0.843 1.205 (0.189–7.681)
Immunosuppressor 9 (30.0%) 17 (28.3%) 0.867 0.920 (0.343–2.464)
Number of antibiotics 3.6 ± 1.2 3.0 ± 1.1 0.029  
Carbapenems 21 (70.0%) 40 (66.7%) 0.731 1.187 (0.445–3.167)
Cephalosporins 20 (66.7%) 45 (75.0%) 0.604 0.771 (0.289–2.059)
Quinolones 16 (53.3%) 30 (50.0%) 1.000 1.000 (0.396–2.523)