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Table 2 Fraction of new prognostic information from including frailty in the model

From: Relationship between the Clinical Frailty Scale and short-term mortality in patients ≥ 80 years old acutely admitted to the ICU: a prospective cohort study

  Fraction of new information p value (likelihood ratio test)
ICU mortality model (%) 30-day mortality model (%) ICU mortality model 30-day mortality model
Categorisation 3 9  < 0.001 < 0.001
Linear 2 8 < 0.001 < 0.001
Nonlinear 3 9 < 0.001 < 0.001
Simplified grouping 1 6 0.002 < 0.001
Dichotomisation 1 5 < 0.001 < 0.001