Table 2.
Overall |
Device |
Nondevice |
|||||
EV | IR | EV | IR | EV | IR | IRRa | |
MRSA/VRE cocolonization | 22 | 2.4 (1.6–3.6) | 17 | 6.5 (3.9–10) | 5 | 0.8 (0.2–1.7) | 5.2 (1.49–18.1)* |
MRSA only | 189 | 21 (18–24) | 77 | 29 (23–36) | 112 | 18 (14–21) | 1.72 (1.16–2.56)* |
VRE only | 22 | 2.4 (1.6–3.6) | 10 | 3.8 (1.9–6.8) | 12 | 1.9 (1.0–3.2) | 2.49 (0.96–6.24) |
Prospective surveillance study of methicillin-resistant Staphylococcus aureus/vancomycin-resistant enterococci cocolonization conducted in skilled nursing facilities in Michigan, October 2005 to January 2010 (n = 178). Abbreviations: EV, number of resident months colonized; IR, incidence rate/100 resident-months; IRR, incidence rate ratio; MRSA/VRE, methicillin-resistant Staphylococcus aureus/vancomycin-resistant enterococci.
Incidence rate ratio of colonization for device group compared with nondevice group adjusted for repeated measures using generalized estimating equations.
*P < .01.