Table 3.
Distribution of the most common pathogens among patients with a positive culture obtained at <24 h from time of admission or emergency room visit
| Pathogen(s) | No. (%) of patientsa |
P value | ||
|---|---|---|---|---|
| HCAI (n = 194) | CAI (n = 255) | Total (n = 449) | ||
| S. aureus | 131 (67.5) | 167 (65.5) | 298 (66.4) | 0.65 |
| Methicillin resistant | 99 (75.6) | 124 (74.3) | 223 (74.8) | 0.71 |
| Methicillin susceptible | 31 (23.7) | 43 (25.7) | 74 (24.8) | |
| Missing sensitivity data | 1 (0.8) | 0 (0.0) | 1 (0.3) | |
| Streptococcus species | 44 (22.7) | 73 (28.6) | 117 (26.1) | 0.16 |
| Enterococcus species | 9 (4.6) | 6 (2.4) | 15 (3.3) | 0.18 |
| Proteus species | 15 (7.7) | 15 (5.9) | 30 (6.7) | 0.44 |
| Other Enterobacteriaceae | 14 (7.2) | 13 (5.1) | 27 (6.0) | 0.35 |
| Pseudomonas aeruginosa | 11 (5.7) | 7 (2.7) | 18 (4.0) | 0.12 |
| Other Gram-negative bacteria | 4 (2.1) | 8 (3.1) | 12 (2.7) | 0.57 |
| Polymicrobial infection | 35 (18.0) | 34 (13.3) | 69 (15.4) | 0.17 |
| Type of pathogen | 0.35 | |||
| ≥1 Gram-positive pathogen (and no Gram-negative pathogens) | 160 (82.5) | 216 (84.7) | 376 (83.7) | |
| ≥1 Gram-negative pathogen (and no Gram-positive pathogens) | 24 (12.4) | 21 (8.2) | 45 (10.0) | |
| Mixed (both Gram-positive and -negative pathogens) | 5 (2.6) | 12 (4.7) | 17 (3.8) | |
| Other | 5 (2.6) | 6 (2.4) | 11 (2.4) | |
a
CAI, community-acquired infection; HCAI, health care-associated infection.