A comparison of sample size methods for the logrank statistic
- 1 January 1992
- journal article
- research article
- Published by Wiley in Statistics in Medicine
- Vol. 11 (2), 179-191
- https://doi.org/10.1002/sim.4780110205
Abstract
Several methods are available for sample size calculation for clinical trials when survival curves are to be compared using the logrank statistic. We discuss advantages and disadvantages of some of these methods, and present simulation results under exponential, proportional hazards and non-proportional hazard situations.Keywords
This publication has 19 references indexed in Scilit:
- Implementation of Group Sequential Logrank Tests in a Maximum Duration TrialPublished by JSTOR ,1990
- Weighted log rank type statistics for comparing survival curves when there is a time lag in the effectiveness of treatmentBiometrika, 1990
- A class of rank test procedures for censored survival dataBiometrika, 1982
- Tables of the number of patients required in clinical trials using the logrank testStatistics in Medicine, 1982
- Planning the duration of a comparative clinical trial with loss to follow-up and a period of continued observationJournal of Chronic Diseases, 1981
- The coronary primary prevention trial: Design and implementationJournal of Chronic Diseases, 1979
- Planning the size and duration of a clinical trial studying the time to some critical eventJournal of Chronic Diseases, 1974
- Planning the duration of long-term survival time studies designed for accrual by cohortsJournal of Chronic Diseases, 1971
- Sample sizes for medical trials with special reference to long-term therapyJournal of Chronic Diseases, 1968