Problem with the export function Delphine Bachelet – 2013/01/16 Stepwise process on Austria data (2013_11_28)

1. I drag and drop 2. I click on « Generate Summary Statistics »

1. I tick « Export (.TXT) 2. I click on Export Data

Around 3 minutes later

Then… I down-load the file clinical_i2b2trans.txt from Guest-DataExport1008 (see slide 4) onto my computer I open it using R:

The example of the Treat variable R code: > head(X$PATIENT.ID) [1] "100" "1000" "10001" "10003" "10004" "10007" > head(X$X.Biomarkers.Test.Treat.) [1] "Rebif44; Rebif44; Betaferon" "Rebif44; Rebif; Rebif; Rebif44; Rebif" "Tysabri" "Rebif44; Rebif44; Rebif44" "Betaferon" [6] "Tysabri" Meaning that Patient « 100 » had Rebif44 for visit 1, Rebif44 for visit 2, Betaferon for visit 3 Patient « 1000 » had Rebif44 for visit 1, Rebif for visit 2, Rebif for visit 3, Rebif44 for visit 4, Rebif for visit 5, Patient « » had Tysabri for visit 1 Patient « » had Rebif44 for visit 1, Rebif44 for visit 2, Rebif44 for visit 3 Patient « » had Betaferon for visit 1 Patient « » had Tysabri for visit 1 But according to TranSMART… Only one variable « Treat » for all the visits. Why that?

According to TranSMART:

Patient IDR – visit 1TranSMART – Visit 1 R – visit 2TranSMART – Visit 2 R – visit 3TranSMART – Visit 3 100Rebif44BetaferonRebif44 BetaferonRebif Rebif44Rebif 10001Tysabri 10003Rebif Betaferon 10007Tysabri Summary … … Conclusion: The data from alphanumeric (categorical) variables of the exported file (clinical_i2b2trans.txt) are not correct and do not match with the data correctly displayed in the TranSMART grid view!