Variable | CS infections (N = 9,431) | CR infections (N = 86) | P-value |
---|---|---|---|
Age (years), mean ± SD | 76.4 ± 12.5 | 74.9 ± 12.7 | 0.259 |
Age (years), n (%) | Â | Â | 0.480 |
 15–64 | 1331 (14.1) | 16 (18.6) |  |
 65–74 | 2098 (22.2) | 19 (22.1) |  |
  ≥ 75 | 6002 (63.6) | 51 (59.3) |  |
Sex, n (%) | Â | Â | 0.025 |
 Male | 5334 (56.6) | 59 (68.6) |  |
 Female | 4097 (43.4) | 27 (31.4) |  |
BMI (kg/m2), mean ± SD | 21.2 ± 4.2 | 20.8 ± 4.5 | 0.127 |
BMI (kg/m2), n (%) | Â | Â | Â |
  < 18.5 | 2517 (26.7) | 28 (32.6) | 0.221 |
 18.5–25 | 5401 (57.3) | 45 (52.3) | 0.356 |
  ≥ 25 | 1513 (16.0) | 13 (15.1) | 0.816 |
WBC, mean ± SD | 11,860.8 ± 7324.4 | 11,191.0 ± 6277.7 | 0.341 |
CRP, mean ± SD | 12.2 ± 9.0 | 11.0 ± 8.8 | 0.149 |
BT, mean ± SD | 38.5 ± 0.9 | 38.3 ± 1.0 | 0.007 |
Main diagnosis, n (%) | Â | Â | Â |
 Pneumonia | 4541 (48.1) | 46 (53.5) | 0.324 |
 Sepsis | 1552 (16.5) | 14 (16.3) | 0.965 |
 UTI | 3254 (34.5) | 24 (27.9) | 0.200 |
 Biliary infection | 1309 (13.9) | 14 (16.3) | 0.522 |
Reason for hospitalization, n (%) | Â | Â | Â |
 Diseases of the circulatory system | 2822 (29.9) | 22 (25.6) | 0.449 |
 Neoplasms | 2214 (23.5) | 14 (16.3) | 0.150 |
 Diseases of the digestive system | 1067 (11.3) | 19 (22.1) | 0.003 |
Charlson Comorbidity Index, n (%) | Â | Â | 0.230 |
 0 point | 1041 (11.0) | 13 (15.1) |  |
 ≥ 1 point | 8390 (89.0) | 73 (84.9) |  |
Comorbidity, n (%) | Â | Â | Â |
 Myocardial infarction | 398 (4.2) | 2 (2.3) | 0.383 |
 Cerebrovascular disease | 2783 (29.5) | 26 (30.2) | 0.884 |
 Congestive heart failure | 1774 (18.8) | 17 (19.8) | 0.821 |
 Rheumatic disease | 274 (2.9) | 6 (7.0) | 0.026 |
 Dementia | 1353 (14.3) | 7 (8.1) | 0.102 |
 Diabetes without complications | 1972 (20.9) | 25 (29.1) | 0.064 |
 Diabetes with complications | 379 (4.0) | 6 (7.0) | 0.166 |
 Mild liver disease | 565 (6.0) | 5 (5.8) | 0.945 |
 Moderate or severe liver disease | 122 (1.3) | 2 (2.3) | 0.401 |
 Peptic ulcer disease | 951 (10.1) | 4 (4.7) | 0.095 |
 Peripheral vascular disease | 464 (4.9) | 3 (3.5) | 0.541 |
 Chronic pulmonary disease | 665 (7.1) | 6 (7.0) | 0.979 |
 Paraplegia and hemiplegia | 233 (2.5) | 1 (1.2) | 0.436 |
 Renal disease | 748 (7.9) | 4 (4.7) | 0.262 |
 Cancer | 3518 (37.3) | 27 (31.4) | 0.259 |
 Metastatic carcinoma | 1032 (10.9) | 6 (7.0) | 0.240 |
 HIV | 10 (0.1) | 0 (0.0) | 0.763 |
Healthcare utilization, n (%) | Â | Â | Â |
 ICU admission | 2359 (25.0) | 19 (22.1) | 0.534 |
 Surgical procedure | 4634 (49.1) | 48 (55.8) | 0.218 |
 Dialysis | 512 (5.4) | 5 (5.8) | 0.875 |
 Mechanical ventilation | 1997 (21.2) | 32 (37.2) |  < 0.001 |
 Immunosuppressive drug | 3223 (34.2) | 30 (34.9) | 0.890 |
 Antibiotics before the culture test | 5937 (63.0) | 76 (88.4) |  < 0.001 |
 Carbapenem before culture test | 779 (8.3) | 27 (31.4) |  < 0.001 |
Number of beds, n (%) | Â | Â | 0.021 |
 < 400 | 2275 (24.1) | 11 (12.8) |  |
 400–500 | 3569 (37.8) | 32 (37.2) |  |
 ≥ 500 | 3587 (38.0) | 43 (50.0) |  |
Rout of admission, n (%) | Â | Â | 0.070 |
 From other wards | 5 (0.1) | 0 (0.0) |  |
 From home | 7,469 (79.2) | 68 (79.1) |  |
 From other hospital | 1,175 (12.5) | 13 (15.1) |  |
 From long-term institutions | 738 (7.8) | 3 (3.5) |  |
 Others | 44 (0.5) | 2 (2.3) |  |