Fig. 2

Adjusted Cox model of modifiable risk factors on 28-day mortality. a Effect of organism is given for the time period 0 to 6 days, when time to appropriate therapy is 1 day. b Effect of ward speciality is given for the median number of staff per 10 beds, median ward activity and median risk score. Abbreviations: ESBL = Extended-spectrum beta-lactamase, MRSA- Methicillin-resistant S. aureus, MSSA = Methicillin-susceptible S. aureus, CI=Confidence interval