Statistica Sinica
2(1992), 265-283
A CLASS OF NONPARAMETRIC PROCEDURES FOR
COMPARING TWO SURVIVAL DISTRIBUTIONS
OVER AN INTERVAL BASED ON
RANDOMLY RIGHT CENSORED DATA
Shie-Shien Yang
Kansas State University
Abstract:
A class of nonparametric tests for comparing two survival distributions
and 
based on randomly right censored data is proposed. The
tests developed assume neither the proportionality of the hazard functions of
and
nor the equality of the censoring distributions. A
subclass of the proposed tests compares favorably to the Gehan and logrank
tests for testing standard hypotheses. It can be used to test hypotheses
concerning F
and G
over a prespecified interval.
Key words and phrases:
Censored data, crossed survival distributions, quantile.