Figure 4

Comparison of salivary levels of 19,20 DiHDPA between CF patients with FEV1 > 69% (n = 41) and FEV1 < 69% (n = 28). DiHDPA was not detectable (< 0.1 ng/mL) in 13 patients with FEV1 > 69% and in 4 patients with FEV1 < 69%. FEV1: forced expiratory volume in the 1st second. *p < 0.01.