Description

The problem is to relate survival times for multiple myeloma patients to a number of prognostic variables.

Usage

Format

A data frame with 65 observations on the following 7 variables.

t

survival times, in months.

event

censoring status.

x1

logarithm of a blood urea nitrogen measurement at diagnosis.

x2

hemoglobin measurement at diagnosis.

x3

age at diagnosis.

x4

sex: 0, male; 1, female.

x5

serum calcium measurement at diagnosis.

References

J.F. Lawless (2002) Statistical Models and Methods for Lifetime Data, Wiley, New York. A.P. Li, Z.X. Chen and F.C. Xie (2012) Diagnostic analysis for heterogeneous log-Birnbaum-Saunders regression models, Statistics and Probability Letters 82, 1690:1698.