Table 3

C-indexes for the models in the derivation and validation cohorts

C-index (95% CI)Model AModel BModel CModel D
Derivation cohort0.865 (0.840 to 0.890)0.881 (0.857 to 0.905)0.873 (0.849 to 0.898)0.888 (0.866 to 0.910)
Validation cohort0.878 (0.824 to 0.930)0.886 (0.832 to 0.938)0.879 (0.825 to 0.933)0.888 (0.836 to 0.940)
  • Model A: including age, estimated glomerular filtration rate, and urine protein; Model B: including hemoglobin, serum uric acid, cardiovascular disease, primary disease, chronic disease management adherence and variables in Model A; Model C: including alpha-blockers, beta-blockers, calcium supplements, Chinese herbal decoction, Chinese patent medicines for dispelling turbidity and variables in Model A; Model D: including all the predictors.