compare multiple roc using a p value

cindyf — Sun, 24 Jul 2022 18:31:22 GMT

Hi all,

I'm testing 4 different types of treatments regarding a same disease outcome (binary variable 1/0)

I am able to plot 4 roc curves and see relative stats (i.e. p-value, c stat, etc).

Is there a way I could compare all these 4 roc curves and get a p value, so I could say all of them are same or not.

Model I used is:

model outcome=bmi age gender . I used "by treatment" to generate 4 individual plots. I also used https://support.sas.com/kb/52/973.html method to overlay all 4 plots and do the pairwise comparison. I'd like to have a global stat, maybe a chi-quare test to show the p.

Thanks so much

Re: compare multiple roc using a p value

PaigeMiller — Sun, 24 Jul 2022 21:02:55 GMT

This allows you to compute p-values for differences of each possible pair of ROC curves. https://support.sas.com/kb/45/339.html

I am not aware of a way to get an overall p-value comparing all ROC curves.

topic Re: compare multiple roc using a p value in SAS Programming

compare multiple roc using a p value

Re: compare multiple roc using a p value