Fig. 3From: Diagnostic accuracy of methacholine challenge tests assessing airway hyperreactivity in asthmatic patients - a multifunctional approachResponse to methacholine in asthmatic patients comparing those with initial or developed pulmonary hyperinflation (n = 78;16.1%) with those without pulmonary hyperinflation (n = 404;83.9%), assessed by forced expiratory volume in one second (FEV1) and forced expiratory flow at 50% vital capacity (FEF50) and the effective specific conductance sGeff Back to article page