Fig 4. Forest plot of all co-variates in the final model in which the proportion of a patient’s stay during which the relevant trust was experiencing a serious operational problem was the exposure of interest.

(Left) A forest plot of all the effect estimates and marginal posterior densities for each covariate in the final model in which the proportion of a patient’s stay during which the relevant trust was experiencing a serious operational problem was the exposure of interest. (Right) The marginal posterior densities (on a log odds scale) for the random effect for each trust (i.e. small group of hospitals that function as a single operational unit), in the aforementioned model.