Short-Term Prognostic Index for Breast Cancer: NPI or Lpi

Table 4

Measures of model performance of NPI and Lpi, after updating. Significant better performance is indicated in bold.

measure	NPI	Lpi	95% CI for the difference between NPI and Lpi
cindex	0.69	0.69	−0.02; 0.02
EvR	0.08	0.05	−0.00; 0.05
EXT%	0.66	0.67	−0.04; 0.01

Difference in event rate in high versus low risk patients
EXT%: percentage of patients classified into the most extreme risk groups
CI: confidence interval.