Establishing a prediction model of infection during the intravesical instillation of bladder cancer: a multicenter retrospective study.

: To explore the independent risk factors of infection during the intravesical instillation of bladder cancer and establish a prediction model, which may reduce probability of infection for bladder cancer patients. : 533 patients with newly discovered NMIBC at two hospitals from January 2017 to December 2019 were enrolled in this study. The patients were divided into "infection positive group" and "infection negative group".