Can fev3 and fev6 replace fev1 in the Functional Assessment of Asthmatic Patients? A Multicenter Cross‑Sectional Study
Introduction: In asthma patients, reductions in FEV3 and FEV6 may reflect early bronchial obstruction and disease severity. This study aimed to evaluate FEV3 and FEV6 as complementary spirometric parameters to FEV1 for assessing asthma severity and control. Material and methods: Multicenter prospective cross-sectional study exhaustively including 221 adult asthma patients recruited from pulmonology departments at Oran University Hospital (EHU) and Bechar Hospital (EPH) from 04/01/2020 to 12/31/2023.