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. 1982 Jun;38(2):457-62.

The use of historical control information in testing for a trend in Poisson means

R E Tarone
  • PMID: 7115873

The use of historical control information in testing for a trend in Poisson means

R E Tarone. Biometrics. 1982 Jun.

Abstract

A method is developed for the use of historical control information in testing for a trend with Poisson data. The resulting test statistic is a modification of a statistic proposed by Armitage (1955, Biometrics 11, 375-386) to test for a trend in frequencies. The contribution of the historical control data in the analysis depends upon the degree of heterogeneity of the historical counts.

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