Estimation of treatment effects in weighted log-rank tests
نویسندگان
چکیده
منابع مشابه
Testing treatment effect by combining weighted log-rank tests and using empirical likelihood
For testing treatment effect with time to event data, combinations of several tests are often desired when the hazard functions of the two groups are nonproportional. Yang and Prentice [2005. Semiparametric analysis of short term and long term hazard ratios with two sample survival data. Biometrika 92, 1–17.] defined a new two-sample semiparametric model that accommodates nonproportional hazard...
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When analyzing right-censored survival data, equality of survival curves across treatment groups is often tested using log rank tests (Peto and Peto 1972), aka Mantel-Haenszel tests. For instance, in a cancer trial, the primary response variable might be time to disease progression and the treatment groups might be chemotherapy regimens. To increase power and protect against baseline imbalances...
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In many epidemiological and medical follow-up studies a majority of study subjects do not experience the event of interest during the followup period. An important example is the on-going prostate, lung, colorectal, and ovarian cancer screening trial of the National Cancer Institute. In such a situation, the widely used G family of weighted log-rank statistics essentially reduces to the special...
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در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولRank Tests for Heterogeneous Treatment Effects with Covariates
Heterogeneous treatment response has long been recognized as an essential feature of randomized controlled experiments. The Neyman (1923) framework of “potential outcomes” foreshadows modern developments by Rubin (1978) and others acknowledging the right of each experimental subject to have a distinct response to treatment. Statistical inference based on ranks has played an important role in th...
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ژورنال
عنوان ژورنال: Contemporary Clinical Trials Communications
سال: 2017
ISSN: 2451-8654
DOI: 10.1016/j.conctc.2017.09.004