Displaying 1 result from an estimated 1 matches for "tp4630259p4638347".
2012 May 16
1
Hmisc improveProb() and PredictABEL reclassification () function and continuous NRI
Dear Sirs.
I am working with the R packages Hmisc and PredictABEL to make NRI estimates from my Cox models with and without a specific biomarker.
According to Pencina et al (Statistics in Medicine 2010, DOI: 0.1002/sim.4085 ), a continuous/non-categorical NRI (NRI>0) is to be used when there are no obvious reason to categorize risk, such as the risk of future cardiovascular events in patients