Long-term repeatability of exhaled breath condensate pH in asthma.

  title={Long-term repeatability of exhaled breath condensate pH in asthma.},
  author={Rosalba Accordino and Annalisa Visentin and Anna Bordin and Silvia Ferrazzoni and Emanuela Marian and Federico Rizzato and Cristina Canova and Roberta Venturini and Piero Maestrelli},
  journal={Respiratory medicine},
  volume={102 3},
Exhaled breath condensate (EBC) is being used increasingly to sample airway fluid. EBC pH may be a biomarker of airway inflammation in asthma. In this study, we assessed the long-term reproducibility of EBC pH in asthma. We examined 31 asthmatic patients and eight healthy subjects three times over a 1-year period (winter, autumn and summer). EBC pH was measured after argon deaeration. Repeatability of pH measurements was assessed using intraclass correlation coefficients (ICC) and the limits of… CONTINUE READING

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