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Table 2 Microorganism profile for the patients in the study cohort

From: Procalcitonin and C-reactive protein perform better than the neutrophil/lymphocyte count ratio in evaluating hospital acquired pneumonia

 28-day survivors n = 23528-day non-survivors n = 104P value
Gram-positive isolates (n, %)16 (6.8%)11 (10.6%)0.2772
S.Aureus12 (5.1%)10 (9.6%)0.1505
MRSA2 (0.9%)0 (0)1
Streptococcus spp.1 (0.4%)0 (0)1
Enterococcus spp.2 (0.9%)1 (1.0%)1
Other1 (0.4%)0 (%)1
Gram-negative isolates (n, %)158 (67.2%)52 (50.0%)0.0035
Acinetobacter baumannii76 (32.3%)37 (35.6%)0.6175
Klebsiella spp.59 (25.1%)26 (25.0%)1
Pseudomonas spp.50 (21.3%)13 (12.5%)0.0687
Enterobacter spp.24 (10.2%)6 (5.8%)0.2177
S. maltophilia16 (6.8%)3 (2.9%)0.2018
Other9 (3.8%)4 (3.8%)1
Fungi isolates (n, %)55 (23.4%)28 (26.9%)0.4959
Candida albicans28 (11.9%)17 (16.3%)0.2985
Candida glabrada16 (6.8%)2 (1.9%)0.0702
Candida tropicalis7 (3.0%)4 (3.8%)0.7423
Other4 (1.7%)4 (3.8%)0.2556
Virus isolates (n, %)2 (0.9%)1 (1.0%)1
Tuberculosis isolates (n, %)1 (0.4%)0 (0)1
  1. Data were presented as number of isolates (percentage of current group), not number of patients. S. aureus, Staphylococcus aureus; MRSA, methicillin-resistant Staphylococcus aureus; S. maltophilia, Stenotrophomonas maltophilia; spp., species