Table 3.

Multivariable associations with in-hospital mortality and hospital discharge from Cox proportional hazards models

	Model 1	Model 2
In-hospital mortality	1·44 (1·02–2·04)	1·23 (0·74–1·70)
Hospital discharge	0·31 (0·22–0·45)	0·31 (0·22–0·45)

Data are hazard ratio (95% CI). In model 1, explanatory variables were age and health-care exposure (previous surgery and previous hospitalisation); in model 2, explanatory variables were the same as in model 1 but with the addition of effective antibiotic use.