Measuring asthma control in group studies: do we need airway calibre and rescue beta2-agonist use?

  title={Measuring asthma control in group studies: do we need airway calibre and rescue beta2-agonist use?},
  author={Elizabeth F. Juniper and Paul M O'Byrne and Jeremy N Roberts},
  journal={Respiratory medicine},
  volume={95 5},
Collection of airway calibre and beta2-agonist data in large clinical trials and epidemiological surveys is sometimes difficult and may be an inefficient use of resources. The aim of this study was to determine whether the omission of the forced expiratory volume in 1 sec (FEV1) and beta2-agonist questions from the seven-item Asthma Control Questionnaire (ACQ) alters its measurement properties and validity. In an observational study, 50 adults with symptomatic asthma attended the clinic at 0, 1… CONTINUE READING

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