title: [Factors influencing the recurrence rate and metastatic rate of bladder cancer].
abstract: Preservation surgeries have been applied for cancer of the urinary bladder in 202 cases during the past twenty years. We herein report the result of a statistical analysis on the background factors which determine the tumor recurrence rates and metastatic rates. The background factors analysed were as follows: size of tumors, number of tumors, histological staging, grading, lymph vessel permeation (ly) and vessel invasion (v). Each factor was analysed by Kaplan-Meier method and multiple regression analysis. By Kaplan-Meier method, tumor size, stage, grade, ly and v were closely related to the tumor recurrence and metastasis. By multiple regression analysis, tumor size, stage and ly were important for recurrence, while tumor size, stage and v were important for metastasis. In this study, histological grading was not so closely related to tumor recurrence and metastasis.
authors.forename: I
authors.initials: I
authors.lastname: Kondo
authors.forename: M
authors.initials: M
authors.lastname: Moriyama
authors.forename: T
authors.initials: T
authors.lastname: Murai
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology*; D009367:Neoplasm Staging; D012044:Regression Analysis; D012307:Risk Factors; D001749:Urinary Bladder Neoplasms / Q000453:epidemiology* / Q000473:pathology