Confidence limits for the ratio of two rates based on likelihood scores: non‐iterative method

• DOI: 10.1002/sim.1405
• Publication Date: 2003-06-09T10:09:11Z
• Authors: P. L. Graham; K. Mengersen; A. P. Morton
• Keywords: Likelihood Functions; Breast Neoplasms; Rate Ratio; Poisson Rates; 03 medical and health sciences; 0302 clinical medicine; Coverage Probability; Data Interpretation, Statistical; Fluoroscopy; Confidence Intervals; Humans; Tuberculosis; Female; Poisson Distribution; Confidence Interval

AbstractThis 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.