In reply to Rashmi.

I don't know. Post this question to the Statistical Procedures Support Community. There are experts there that know more about logistic regression and ROC curves than I do. One idea: To test whether your model (with your data) has the same AUC as reported in the published study, you can use the ROC statement in PROC LOGISTIC to compute the area and confidence interval. If your CI contains the AUC reported by the study, they are statistically the same.