Table 4 Results of the multivariable analysis for all cases of methicillin-resistant Staphylococcus aureus
ICU structure and process parameters | IRR (95% CI) | P valuea |
|---|---|---|
Type of screening | Â | Â |
   No screening | 1 = reference | ≤0.001 |
   Targeted screening of risk patients | 1.46 (1.00-2.14) |  |
   Universal admission screening | 2.73 (1.78-4.18) |  |
Size of the hospital | Â | Â |
   Hospital size not greater than the median | 1 = reference | 0.001 |
   Hospital size greater than the median | 1.66 (1.22-2.24) |  |
Not significant in the multivariable analysis | ||
Isolation (strict SR isolation/SR or contact precautions/contact precautions) | ||
Decolonization with mupirocin (decolonization of all/not all MRSA patients) | ||
Interactions: screening-isolation, screening-decolonization, isolation-decolonization | ||
Pre-emptive isolation | ||
Short admissions of less than 48 hours of less than 1/3 of admitted patients | ||
Nurse-to-patient ratio (not greater than the median/greater than the median) | ||
Percentage of ventilator beds (not greater than the median/greater than the median) | ||
Number and percentage of SRs (not greater than the median/greater than the median) | ||
Size of ICU (not greater than the median/greater than the median) | ||
Type of hospital (university/academic/other) | ||
Type of ICU (medical-surgical/medical/surgical/other) | ||
Length of stay (not greater than the median/greater than the median) | ||
Device use (CVC, ventilation) (not greater than the median/greater than the median) | ||