bcos {thregI}

Breast Cosmesis Data

Description

94 early breast cancer patients who had been treated with primary radiation therapy and adjuvant chemotherapy and with radiotherapy alone for the treatment. A patient due to monitored weekly or monthly for a clinically observable change in breast cancer status and may return with a changed status. For this case, we know the changed status is between ( L, R ].

Usage

bcos

Format

id:	subject recorded in the data set
left:	breast cancer status return with a changed status after time L
right:	breast cancer status return with a changed status after time R
treatment:	Radiation = radiation therapy, RadChemo = radiation therapy with chemotherapy

References

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