breast: Breast Cancer Data

In SMPracticals: Practicals for Use with Davison (2003) Statistical Models

Breast Cancer Data

Description

Initial and follow-up status for 37 breast cancer patients treated for spinal metastases. The status is able to walk unaided (1), unable to walk unaided (2), dead (3). The follow-up times are 0, 3, 6, 12, 24, and 60 months after treatment began.

Usage

data(breast)

Format

A data frame with 37 observations on the following 8 variables.

j

Case number

init

Initial status

x0

Status immediately after treatment started

x1

Status after 3 months

x2

Status after 6 months

x3

Status after 12 months

x4

Status after 24 months

x5

Status after 60 months

Details

Woman 24 was alive after 6 months but her ability to walk was not recorded (she was in state 1 or 2).

NA indicates that a woman has previously died, or that her status is unknown.

Source

de Stavola, B. L. (1988) Testing departures from time homogeneity in multistate Markov processes. Applied Statistics, 37, 242–250.

References

Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 227.

Examples

data(breast)

SMPracticals documentation built on May 29, 2024, 12:19 p.m.