Table 4 Comparison of prediction models and model discrimination

 Age

*

*

*

*

*

 Age term quadratic term

*

*

*

 Male sex

*

 Residential care

*

*

*

 Deprived (highest quintile)

*

 Rural (settlement <3000)

*

*

*

 Admissions in prior 1 year (per admission)

*

*

*

 Length of stay (per week)

*

 Emergency admission

*

*

*

 Medical ward admission

*

*

 Intensive care admission

*

 AKI stages 0–3

*

*

*

*

 Prior AKI count (per episode)

*

*

 Baseline eGFR (linear and quadratic)

*

*

*

 Discharge creatinine 20% > baseline

*

 Cancer

*

*

*

 Cardiac failure

*

*

*

 Cerebrovascular disease

*

 Dementia

*

 Diabetes

*

*

*

 Hemiplegia

*

 Liver disease

*

 Myocardial infarction

*

 Peptic ulcer disease

*

 Peripheral vascular disease

*

 Pulmonary

*

*

*

 Rheumatic disease

*

Model C statistic

0.699

0.698

0.685

0.655

0.594

0.587

95% confidence interval

(0.688–0.709)

(0.688–0.709)

(0.675–0.696)

(0.644–0.666)

(0.582–0.605)

(0.578–0.596)

P-value for AUC comparison with the next most complex model

-

0.536

<0.001

<0.001

<0.001

0.344