A family of confidence intervals for the ratio of two binomial proportions

Biometrics. 1987 Dec;43(4):993-8.

Abstract

The power divergence family of statistics introduced by Cressie and Read (1984, Journal of the Royal Statistical Society, Series B 46, 440-464) is used to obtain approximate confidence intervals for the ratio of two proportions. Intervals based on inverting the Pearson, likelihood-ratio, and Freeman-Tukey statistics are included in this family. Small-sample comparisons of the intervals are presented.

MeSH terms

  • Biometry
  • Epidemiologic Methods*
  • Humans
  • Probability
  • Risk Factors