Net Reclassification Index

[Jean-Baptiste Lascarrou]

Hi,

I want to determine Net Reclassification Index for a score dedicated to early evaluation of prognosis. I have a previous score which is the gold standard and I want to determine NRI for the new one. Each score is build with logistic regression then save.

# logit CPC_B_J90 ageSTATA i.Sexe i.cause_CARDIAQUE i.temoin i.type_lieuDomicile i.CAbeforeorafter911 i.rythmechoquable Timeto911
predict Utstein_AUC #

# logit CPC_B_J90 age_CAHP_FINAL i.setting_CAHP i.initialrythm_CAHP noflow_CAHP lowflow_CAHP pH_CAHP_FINAL i.epinephrine_CAHP
predict CAHP_AUC #

Then I perform analysis with

#nri CPC_B_J90 CAHP_AUC#

But I'm not sure result is adequate and if nri command take Utstein_AUC as the reference?

Thanks

PS: Too many values for Dataex

[Ivan Ferraz-Amaro]

nri sintax is: nri1 depvar varlist1, prvars(varlist2) cut(#)
You have not added the new variables that have to be added to the model.