Creating categories of risk | Weights for combining risk category specific event rates for each centre |
---|---|
Equal width: 0.0-0.1, 0.1-0.2, 0.2-0.3, etc. | Equal |
Equal numbers of patients in each | Proportion of all patients in each category |
Equal numbers of observed deaths in each | Proportion of all observed deaths in each category |
Equal numbers of predicted deaths in each | Proportion of all predicted deaths in each category |