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Table 3 Bacterial identified in this study from patients with VAP and NV-HAP using culture and PCR methods

From: Identification and detection of pathogenic bacteria from patients with hospital-acquired pneumonia in southwestern Iran; evaluation of biofilm production and molecular typing of bacterial isolates

Bacteria VAP NV-HAP P value* P value**
Culture (N = 38) PCR (N = 39) Culture (N = 16) PCR (N = 17)
Acinetobacter baumannii 18 (47.4%) 18 (46.2%) 2 (12.5%) 2 (11.8%) 0.016 0.014
Pseudomonas aeruginosa 10 (26.3%) 10 (25.6%) 3 (18.7%) 3 (17.6%) 0.554 0.518
Staphylococcus aureus 6 (15.8%) 6 (15.4%) 9 (56.3%) 9 (52.9%) 0.003 0.004
Escherichia coli 4 (10.5%) 5 (12.8%) 2 (12.5%) 2 (11.8%) 0.832 0.918
Klebsiella pneumonia 0 0 0 1 (5.9%)
Total 100% 100% 100% 100%   
  1. *Between the cultures of the two groups VAP and NV-HAP
  2. **Between the PCR of the two groups VAP and NV-HAP