Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ.

@article{Grammatopoulou2014HyperventilationIA,
  title={Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ.},
  author={Eirini P Grammatopoulou and Emmanouil K. Skordilis and Georgios Georgoudis and Aikaterini Haniotou and Afroditi Evangelodimou and George A Fildissis and Theodoros A. Katsoulas and Panagiotis Kalagiakos},
  journal={The Journal of asthma : official journal of the Association for the Care of Asthma},
  year={2014},
  volume={51 8},
  pages={
          839-46
        }
}
INTRODUCTION The Nijmegen questionnaire (NQ) has previously been used for screening the hyperventilation syndrome (HVS) in asthmatics. However, no validity study has been reported so far. OBJECTIVE To examine the validity and reliability of the NQ in asthma patients and identify the prevalence of HVS. METHODS The NQ (n = 162) was examined for translation, construct, cross-sectional and discriminant validity as well as for internal consistency and test-retest reliability. RESULTS Principal… CONTINUE READING
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