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A new approach to categorize continuous variables in prediction models: Proposal and validation
(2017-12)
When developing prediction models for application in clinical practice, health practitioners
usually categorise clinical variables that are continuous in nature. Although categorisation is not
regarded as advisable from ...
Comparison of two discrimination indexes in the categorisation of continuous predictors in time-to-event studies
(2017-04)
The Cox proportional hazards model is the most widely used survival prediction model for analysing timeto-event data. To measure the discrimination ability of a survival model the concordance probability index is widely ...