Comparison of the EORTC tables and the EAU categories for risk stratification of patients with nonmuscle-invasive bladder cancer

Compared to EORTC risk stratification, the EAU categories reclassifies 37.9% patients into a higher risk group of recurrence and 11.8% into a higher risk of progression potentially leading to a Will-Rogers phenomenon. However, the novel risk stratification assigns the majority of patients to the same treatment as the more complex EORTC tables and can be regarded as an alternative and easy-to-use tool for treatment decision-making.