Table 2.
Microbiology grouped by HCAP, HAP, and VAPa
|
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) |
HAP, Hospital-acquired pneumonia; HCAP, Healthcare-associated pneumonia; MRSA, Methicillin-resistant Staphylococcus aureus; MSSA, Methicillin-susceptible S. aureus; VAP, Ventilator-associated pneumonia.
aMost commonly isolated pathogens reported (at least 2% in HCAP, HAP, or VAP).