Table 1 Comparison of patient backgrounds and symptoms, and severity of bacteremia
|  | Total | Non-severe group (Pitt < 2) | Severe group (Pitt ≥ 2) | P value |
|---|---|---|---|---|
Number of patients | 71 | 44 | 27 | Â |
Age (median, range) | 75 (31–94) | 72.9 (34–93) | 72 (31–94) | 0.38 |
Gender (male: female) | F28 M43 | F16 M28 | F12 M15 | 0.618 |
Nursing home | 4 | 2 | 2 | 0.632 |
Antibiotic use within 3 months | 29 | 19 | 10 | 0.479 |
Charlson index (median, range) | 4 (0–11) | 4 (0–11) | 3 (0–8) | 0.104 |
Collagen diseases | 4 | 4 | 0 | 0.29 |
Diabetes mellitus without organ involvement | 7 | 3 | 4 | 0.415 |
Diabetes mellitus with organ involvement | 20 | 17 | 3 | 0.015* |
Malignancy | 49 | 31 | 18 | 0.613 |
Abnormality of biliary tract | 43 | 29 (65.9%) | 14 (52%) | 0.318 |
Abnormality of gastrointestinal tract | 38 | 25 | 13 | 0.625 |
Previous history of acute biliary infection | 33 | 21 | 12 | 0.811 |
Previous history of bacteremia | 11 | 7 | 4 | 1 |
Duration between onset of symptoms and admission (days) | 0 (− 24 to 10) | 0 (− 24 to 4) | 0 (−10 to 10) | 0.924 |
Fever | 39 | 23 | 16 | 0.629 |
Immunosuppressant use | 27 | 19 | 8 | 0.318 |
Artificial device in biliary tract | 19 | 11 | 8 | 0.784 |