共查询到20条相似文献,搜索用时 15 毫秒
1.
Least squares regression with censored data 总被引:10,自引:0,他引:10
2.
3.
4.
5.
6.
A note on methods of restoring consistency to the bootstrap 总被引:1,自引:0,他引:1
7.
Estimation in linear models with censored data 总被引:1,自引:0,他引:1
8.
9.
10.
Li Z 《Biometrics》1999,55(1):277-283
A method of interim monitoring is described for survival trials in which the proportional hazards assumption may not hold. This method extends the test statistics based on the cumulative weighted difference in the Kaplan-Meier estimates (Pepe and Fleming, 1989, Biometrics 45, 497-507) to the sequential setting. Therefore, it provides a useful alternative to the group sequential linear rank tests. With an appropriate weight function, the test statistic itself provides an estimator for the cumulative weighted difference in survival probabilities, which is an interpretable measure for the treatment difference, especially when the proportional hazards model fails. The method is illustrated based on the design of a real trial. The operating characteristics are studied through a small simulation. 相似文献
11.
12.
13.
Prediction and the efficiency of least squares 总被引:1,自引:0,他引:1
14.
15.
16.
17.
A note on an estimator of life expectancy with random censorship 总被引:1,自引:0,他引:1
18.
19.
20.