Figure 2

Relationship between and the baseline and changes in incidence (y axis) for all outcomes during the implementation period*. * 95%CI band of the predicted curve as well as the original data points presented; the sizes of the scatter points in each graph were drawn proportional to the volume of admissions during the implementation period; baseline and change in incidence were presented as events per 1000 admissions; for only primary outcome and unexpected death in control hospitals, the figures suggest a quadratic relationship.