Confidence intervals for hearing loss allocation estimates

Robert A. Dobie

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A method for estimating confidence intervals for hearing loss allocation estimates is developed and demonstrated. Based on the ISO-1999 model for the combination of noiseinduced permanent threshold shift (NIPTS) and age-related permanent threshold shift (ARPTS), the probabilities of different pairs of NIPTS and ARPTS values can be represented by a three dimensional joint probability density function (JPDF). When the JPDF is intersected by equal-probability planes, the resulting ellipses define the confidence intervals. This method makes conservative assumptions that will usually overestimate the width of the confidence interval.

Original languageEnglish (US)
Pages (from-to)315-322
Number of pages8
JournalEar and Hearing
Issue number5
StatePublished - Oct 1993

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Speech and Hearing


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