FEV1/FEV6: A Reliable, Easy-to-Use, and Cheaper Alternative to FEV1/FVC in Diagnosing Airway Obstruction in Indian Population
Figure 2
Receiver-operator characteristic curve for forced expiratory volume in one second (FEV1)/FEV6 using FEV1/forced vital capacity <70% as a “gold standard” for obstruction.
