cosmesis {coxinterval}R Documentation

Breast cosmesis data

Description

Interval-censored times to cosmetic deterioration for breast cancer patients undergoing radiation or radiation plus chemotherapy.

Usage

data(cosmesis)

Format

A data frame with 94 observations on the following 3 variables.

left

left endpoint of the censoring interval in months

right

right endpoint of the censoring interval in months

treat

a factor with levels RT and RCT representing radiotherapy-only and radiation plus chemotherapy treatments, respectively

Source

Finkelstein, D. M. and Wolfe, R. A. (1985) A semiparametric model for regression analysis of interval-censored failure time data. Biometrics 41, 933–945.

References

Finkelstein, D. M. (1986) A proportional hazards model for interval-censored failure time data. Biometrics 42, 845–854.

Examples

data(cosmesis)

[Package coxinterval version 1.2 Index]