Microbiology | HCAP | HAP | VAP |
---|---|---|---|
(n = 199) | (n = 379) | (n = 606) | |
 | n (%) | n (%) | n (%) |
Gram-positive pathogens | 117 (58.8) | 226 (59.6) | 441 (72.8) |
 MRSA | 82 (41.2) | 125 (33.0) | 259 (42.7) |
 MSSA | 12 (6.0) | 51 (13.5) | 107 (17.7) |
 Pneumococcus | 4 (2.0) | 10 (2.6) | 15 (2.5) |
 Other Streptococcus spp. | 7 (3.5) | 15 (4.0) | 18 (3.0) |
Gram-negative pathogens | 53 (26.6) | 113 (29.8) | 222 (36.6) |
 Pseudomonas aeruginosa | 22 (11.1) | 28 (7.4) | 57 (9.4) |
 Acinetobacter spp. | 8 (4.0) | 16 (4.2) | 44 (7.3) |
 Haemophilus spp. | 6 (3.0) | 5 (1.3) | 23 (3.8) |
 Moraxella catarrhalis | 4 (2.0) | 1 (0.3) | 2 (0.3) |
 Klebsiella spp. | 5 (2.5) | 32 (8.4) | 41 (6.8) |
 Escherichia coli | 10 (5.0) | 19 (5.0) | 17 (2.8) |
 Enterobacter spp. | 3 (1.5) | 15 (4.0) | 31 (5.1) |
 Proteus mirabilis | 1 (0.5) | 8 (2.1) | 13 (2.1) |
 Stenotrophomonas maltophilia | 0 (0) | 2 (0.5) | 13 (2.1) |
Polymicrobial | 111 (55.8) | 191 (50.4) | 387 (63.9) |
Culture negative | 50 (25.1) | 101 (26.6) | 79 (13.0) |
Bacteremia | 28 (14.1) | 49 (12.9) | 103 (17.0) |