Characteristic | K. pneumoniae (n = 49) No. (%) | S. pneumoniae (n = 44) No. (%) | p-value |
---|---|---|---|
Age, mean years ± SE | 73 ± 14 | 76 ± 11 | 0.893 |
Male sex | 39 (79.6) | 39 (88.6) | 0.236 |
Predisposing condition or risk factor | |||
   Diabetes mellitus | 17 (34.7) | 11 (25) | 0.309 |
   Malignancy | 14 (28.6) | 11 (25) | 0.698 |
   Neurologic disorders | 12 (24.5) | 12 (27.3) | 0.759 |
   Chronic kidney disease stage≧4 | 13 (26.5) | 13 (29.5) | 0.746 |
   Chronic lung diseases | 23 (46.9) | 21 (47.7) | 0.939 |
   Liver cirrhosis | 4 ( 8.2) | 3 ( 6.8) | 1.000 |
   Alcoholism | 5 (10.2) | 1 ( 2.3) | 0.207 |
   Autoimmune disease | 3 ( 6.1) | 1 ( 2.3) | 0.619 |
No underlying diseases | 3 ( 6.1) | 5 (11.4) | 0.470 |
APACHE II score > 25 | 35 (71.4) | 13 (29.5) | <0.001 |
Days of hospitalization | 28 ± 24 | 21 ± 15 | 0.929 |
Initial presentation with septic shock | 25 (51) | 14 (31.8) | 0.061 |
Initial presentation with respiratory failure | 30 (61.2) | 14 (31.8) | 0.005 |
PSI Risk Class V | 44 (89.8) | 27 (61.4) | 0.001 |
ICU admission | 28 (57.1) | 14 (31.8) | 0.014 |
Concurrent lung abscess | 3 ( 6.1) | 0 ( 0) | 0.244 |
Early mortality (deaths ≦ 48 hrs) | 18 (36.7) | 6 (13.6) | 0.011 |
In-hospital mortality | 27 (55.1) | 12 (27.3) | 0.007 |