Fereres, J.

infection mrsa infection patient risk factors factor hospital wound ulcer hazard pressure ulcers catheter aureus methicillin-resistant staphylococcus aureus development pressure staphylococcus control care patients department risk factor hospital department mrsa isolation study care unit antibiotic ratio cohort analysis hazard ratio hazard ratios colonization coello prevention j hasp tract outbreak isolation postoperative wound infection table i staphylococcus aureus table number catheterization endotracheal tubes hazards survival analysis 68 mrsa infections eur j clin hospital-acquired mrsa admission epidemic bacteraemia multivariate nosocomial model event time drain carrier sites tract catheters skin lesions time periods strain carriage standard multivariate analysis staff hands laboratory standards mrsa bacteraemia universitario nasogastric 990 patients medicine health carlo 12 days therapy endotracheal treatment spread wenzel rp presence