Confidence limits for the ratio of two rates based on likelihood scores: Non-iterative method

Abstract

This paper describes a method for creating a confidence interval for the ratio of rates using the score statistic. This non-iterative and easy to apply procedure produces confidence intervals that are suitable for use with Poisson data and simulation results indicate that it is close to the nominal level for a wide range of scenarios. Copyright © 2003 John Wiley & Sons, Ltd.