Risk tables can be used for the prediction of recurrence and especially progression of nonmuscle invasive bladder cancer .The European Organization for Research and Treatment of Cancer(EORTC) developed a risk table,which provides a scoring system for recurrence and progression risk.The EORTC risk table includes these factors: number of tumors,tumor size,prior recurrence rate,T stage,presence of carcinoma in situ(CIS),and grade for NMIBC patients not treated by maintenance bacillus Calmette-Guerin(BCG) instillation therapy.The Spanish Urology Association for Oncological Treatment(CUETO)later proposed a modified model to be used for patients only treated with BCG instillation.This risk table includes these factors:age,gender,recurrent tumor,number of tumors,T stage,CIS,and grade.