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coxinterval (version 1.2)

cosmesis: Breast cosmesis data

Description

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

Usage

data(cosmesis)

Arguments

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.