caa a22 4500 605476012 CHVBK 20210128100354.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10985-013-9283-3 doi (NATIONALLICENCE)springer-10.1007/s10985-013-9283-3 Confidence bands for the difference between two median survival times as a function of covariates [Elektronische Daten] [Yuh-Ing Chen, Yu-Mei Chang, Jen-Yu Lee] In this paper, the estimation of the difference between two median survival times is considered when two treatment groups of right-censored data and the associated covariates are available. To identify the possible range of covariates over which the two treatments would produce different median survival times, two confidence bands for the difference as a function of the covariates are proposed under the stratified and treatment-specific Cox models, respectively. The results of a simulation study indicate that the latter generally maintains its confidence level and the former holds its confidence level and preserves a narrower width when the two treatments satisfy the stratified Cox model. An application of the proposed confidence bands is finally illustrated with a data set in a two-arm lung cancer study. Springer Science+Business Media New York, 2013 Confidence band nationallicence Median survival time nationallicence Right-censored data nationallicence Stratified Cox model nationallicence Treatment-specific Cox model nationallicence Chen Yuh-Ing Institute of Statistics, National Central University, 320, Jhongli, Taiwan, ROC aut Chang Yu-Mei Department of Statistics, Tunghai University, 407, Taichung, Taiwan, ROC aut Lee Jen-Yu Biostatistics Center, Taipei Medical University, 110, Taipei, Taiwan, ROC aut Lifetime Data Analysis Springer US; http://www.springer-ny.com 21/1(2015-01-01), 97-118 1380-7870 21:1<97 2015 21 10985 https://doi.org/10.1007/s10985-013-9283-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10985-013-9283-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Yuh-Ing Institute of Statistics, National Central University, 320, Jhongli, Taiwan, ROC aut NATIONALLICENCE 700 1- Chang Yu-Mei Department of Statistics, Tunghai University, 407, Taichung, Taiwan, ROC aut NATIONALLICENCE 700 1- Lee Jen-Yu Biostatistics Center, Taipei Medical University, 110, Taipei, Taiwan, ROC aut NATIONALLICENCE 773 0- Lifetime Data Analysis Springer US; http://www.springer-ny.com 21/1(2015-01-01), 97-118 1380-7870 21:1<97 2015 21 10985