Enhanced prognostic value of four‐tier hybrid grading system in Ta non‐muscle‐invasive bladder cancer

Our findings highlight the superior prognostic accuracy of the four-tier hybrid classification in predicting recurrence and progression in patients with stage Ta NMIBC. By combining strengths from the WHO 1973 and 2004/2022, this hybrid model shows promise as tool for enhancing NMIBC patient management in clinical practice.