Figure 3From: Long-term gas exchange characteristics as markers of deterioration in patients with cystic fibrosis Crosstab comparison of initial z -scores (mean during age range of 5 to 8 years) between A), PaO 2 and FRC pleth presenting pulmonary hyperinflation in association with hypoxemia and B) PaO 2 and FEV 1 , to present the portion of normal FEV 1 measurements while already hypoxemic, obtained in 120 CF patients.Back to article page