Power calculation for non-inferiority trials comparing two Poisson distributions
نویسندگان
چکیده
Rare events are often described by a Poisson distribution. In clinical research the examination of such rare events could be the basis of a non-inferiority trial. In order to plan such a trial the power of a statistical test comparing two Poisson distributions is required. The purpose of this paper is to present a method for calculating size and power of three statistical tests. The method can be easily realized with a short SAS R © program. The paper will depict the approach graphically and theoretically.
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تاریخ انتشار 2005