Total No. of Gram-negative bacteria pneumonia = 115 | Serratia marcescens (%) | Proteus mirabilis (%) | P value |
---|---|---|---|
No. of patients | 43 (37.4) | 20 (17.4) | |
Gender | |||
Male | 26 (60.5) | 14 (70) | 0.655 |
Female | 17 (39.5) | 6 (30) | 0.655 |
Age mean + SD (years) | 66.2 ± 13.4 | 64.6 ± 12.8 | 0.648 |
Acquisition of pneumonia | |||
Community-acquired pneumonia | 15 (34.9) | 6 (30) | 0.083 |
Nosocomial-acquired pneumonia | 23 (53.5) | 7 (35) | 0.083 |
Aspiration pneumonia | 5 (11.6) | 7 (35) | 0.083 |
Specimens | |||
Tracheal secretions | 33 (76.7) | 9 (45) | 0.056 |
Bronchial secretions | 7 (16.3) | 5 (25) | 0.056 |
Sputum | 1 (2.3) | 2 (10) | 0.056 |
Throat swab | 0 | 2 (10) | 0.056 |
Venous blood culture | 2 (4.7) | 2 (10) | 0.056 |
Duration of hospital stay mean ± SD (days) | 22.2 ± 18.1 | 18.4 ± 13.4 | 0.392 |
No. of deaths | 7 (16.3) | 3 (15) | 0.807 |