Summarizing methacholine bronchoprovocation data in epidemiological surveys

Bull Eur Physiopathol Respir. Jul-Aug 1987;23(4):387-9.

Abstract

We have performed bronchoprovocation tests with methacholine in 41 patients with asthma due to Western red cedar dust and in 56 office-workers without known respiratory illness. Our purpose was to define a summary statistic for useful bronchial hyperresponsiveness in epidemiologic surveys. We found a significant linear relationship between the concentration of methacholine and the FEV1 response. We noted, in addition, a positive relation between the rate of the FEV1 response per concentration and the level of FEV1. We conclude that a linear dose-response slope, which can be calculated for each individual, provides a comprehensive summary of methacholine bronchoprovocation tests and is useful in epidemiologic surveys.

MeSH terms

  • Adult
  • Asthma / physiopathology*
  • Bronchial Provocation Tests / methods*
  • Dose-Response Relationship, Drug
  • Epidemiologic Methods
  • Humans
  • Maximal Expiratory Flow Rate
  • Methacholine Chloride
  • Methacholine Compounds / pharmacology*
  • Middle Aged
  • Models, Biological

Substances

  • Methacholine Compounds
  • Methacholine Chloride