Table 2: Summary of Organisms for MRSA and Non-MRSA VAP Groups.
| Organism Category | MRSA*(n = 31) | Non-MRSA (n = 109) | p-value |
| Enterobacteraciae, n (%) | 2 (6.5) | 35 (32.1) | < 0.01 |
| Pseudomonas aeruginosa, n (%) | 3 (9.7) | 29 (26.6) | 0.05 |
| SPACE, n (%) | 4 (12.9) | 25 (22.9) | 0.32 |
| Other gram negative, n (%) | 2 (6.5) | 13 (11.9) | 0.52 |
| MSSA, n (%) | 1 (3.2) | 13 (11.9) | 0.31 |
| Enterococcus spp, n (%) | 0 (0) | 3 (2.8) | > 0.99 |
| Other gram positive, n (%) | 1 (3.2) | 12 (11) | 0.30 |
*If a patient had a polymicrobial culture result that included MRSA and a non-MRSA pathogen they were included in the 'MRSA VAP group'.
SPACE, Serratia spp., Pseudomonas spp., Acinetobacter spp., Citrobacter spp., Enterobacter spp.; MSSA, methicillin susceptible Staphylococcus aureus.