Table 1.
Comparison of the Staphylococcus species nasal colonization rates of ICU and OS patient populations
| Strain(s)b | No. (%) of colonized patients |
||
|---|---|---|---|
| OS patients (n = 151) | ICU patients (n = 202) | Total (n = 353) | |
| Staphylococcus spp. | 148 (98.0)a | 188 (93.1) | 336 (95.2) |
| S. aureus | 39 (25.8) | 50 (24.8) | 89 (25.2) |
| MSSA | 37 (24.5) | 44 (21.8) | 81 (22.9) |
| MRSA | 2 (1.3) | 6 (3.0) | 8 (2.3) |
| CoNS | 143 (94.7)a | 178 (88.1) | 321 (90.9) |
| MSCoNS | 128 (84.8)a | 60 (29.7) | 188 (53.3) |
| MRCoNS | 51 (33.8)a | 154 (76.2) | 205 (58.1) |
| MRCoNS and MSSA | 9 (6.0)a | 27 (13.4) | 36 (10.2) |
a
P < 0.05 for orthopedic surgery (OS) versus ICU patients, calculated using Fisher's exact test.
b
MSSA, methicillin-susceptible S. aureus; MRSA, methicillin-resistant S. aureus; CoNS, coagulase-negative staphylococci.