Figure 2From: Progression of pulmonary hyperinflation and trapped gas associated with genetic and environmental factors in children with cystic fibrosisProgression of FRC pleth over time in 152 patients with lung function stratified at age 6 to 8 years into 4 functional severity groups. Group PH&TG (pulmonary hyperinflation and trapped gas): FRCpleth and VTG > 2SDS; group PH (pulmonary hyperinflation without trapped gas): FRCpleth > 2SDS; group VIH (ventilation inhomogeneities): LCI > 2SDS; group FN: functionally normal.Back to article page