# R: Bladder Cancer Recurrences

bladder {survival} | R Documentation

## Bladder Cancer Recurrences

### Description

Data on recurrences of bladder cancer, used by many people to demonstrate methodology for recurrent event modelling.

### Usage

    bladder
    bladder2

### Format

bladder

id: | Patient id
rx: | Treatment 1=placebo 2=thiotepa
number: | Initial number of tumours (8=8 or more)
size: | size (cm) of largest initial tumour
stop: | recurrence or censoring time
enum: | which recurrence (up to 4)

bladder2

id: | Patient id
rx: | Treatment 1=placebo 2=thiotepa
number: | Initial number of tumours (8=8 or more)
size: | size (cm) of largest initial tumour
start: | start of interval (0 or previous recurrence time)
stop: | recurrence or censoring time
enum: | which recurrence (up to 4)

### Source

LJ Wei, DY Lin, L Weissfeld (1989), Regression analysis of multivariate incomplete failure time data by modeling marginal distributions. Journal of the American Statistical Association, 84.

[Package survival version 2.32 Index]