INTRODUCTION
Bladder cancer
BLADDER CANCER, MALIGNANT TUMOR OF URINARY TRACT
Bladder cancer (BC) is the most common malignant tumor of urinary tract.In recent years, several LN prognostic factors were proposed to estimate the prognosis of BC patients, including the positive lymph nodes (PLNs) and the lymph node ratio (LNR).The present study aimed to compare the prognostic values among different LN status factors of BC patients by analyzing data from the Surveillance, Epidemiology, and End Results (SEER) database. Subsequently, we established novel nomograms incorporating LODDS for predicting OS and CSS, and successfully validated them in internal and external validation cohorts.