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Activity Number:
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34
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Type:
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Contributed
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Date/Time:
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Sunday, August 3, 2008 : 2:00 PM to 3:50 PM
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Sponsor:
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Biopharmaceutical Section
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| Abstract - #301469 |
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Title:
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Strengthening the Understanding of the Relationship Between Survival Designs and Test Statistics
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Author(s):
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Jitendra Ganju*+ and Guoguang (Julie) Ma
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Companies:
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Amgen, Inc and Amgen, Inc
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Address:
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1120 Veterans Blvd, South San Francisco, CA, 94080,
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Keywords:
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logrank statistic ; follow-up time
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Abstract:
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In the planning of survival trials, the role of patient follow-up time introduces a level of complexity not encountered in other (nonsurvival) trials. Of two commonly used survival designs, one fixes the patient follow-up time whereas the other allows time to vary. When the follow-up time is fixed the number of events varies. Follow-up time varies when the number of events is fixed. We explain how the two designs time to event (e.g., logrank) and binomial (e.g., relative risk, risk difference) test statistics.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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