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Table 1 Demographic data, acquisition of pneumonia, length of hospital stay, mortality rate, and different discovery methods of Serratia marcescens and Proteus mirabilis infection in patients with pneumonia

From: Cefepime shows good efficacy and no antibiotic resistance in pneumonia caused by Serratia marcescens and Proteus mirabilis – an observational study

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

  1. Abbreviations: SD standard deviation