Randomized two-stage optimal design for interval-censored data.
Randomized two-stage optimal design for interval-censored data.
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DOI:
10.1080/10543406.2021.2009499
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发表时间:
2022-03
影响因子:
1.1
通讯作者:
Shan, Guogen
中科院分区:
文献类型:
--
作者:
Shan, Guogen
Interval-censored data occur in a study where the exact event time of each participant is not observed but it is known to be within a certain time interval. Multiple tests were proposed for such data, including the logrank test by Sun, the proportional hazard test by Finkelstein, and the Wilcoxon-type test by Peto and Peto. We propose sample size calculations based on these tests for a parallel one-stage or two-stage design. When the proportional hazard assumption is met, the proportional hazard test and the logrank test need smaller sample size than the Wilcoxon-type test, and the sample size savings are substantial. But this trend is reversed when the proportional hazard assumption does not hold, and the sample size savings using the Wilcoxon-type test are sizable. An example from a lung cancer clinical trial is used to illustrate the application of the proposed sample size calculations.
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影响因子:
1.1
作者:
Shan, Guogen
通讯作者:
Shan, Guogen
影响因子:
2.2
作者:
Gong, Qi;Fang, Liang
通讯作者:
Fang, Liang
DOI:
10.1016/j.trci.2018.04.006
发表时间:
2018
期刊:
Alzheimer's & dementia (New York, N. Y.)
影响因子:
--
作者:
Shan G;Banks S;Miller JB;Ritter A;Bernick C;Lombardo J;Cummings JL
通讯作者:
Cummings JL
影响因子:
45.3
作者:
Trinquart, Ludovic;Jacot, Justine;Porcher, Raphael
通讯作者:
Porcher, Raphael
影响因子:
2.3
作者:
Shan G
通讯作者:
Shan G