Abstract: | Measurements of FEV0-5, FEV0-75 and FEV1 and FVG have been made on 241 healthy schoolchildren using a spirometer and a reverse plethysmorgraph system. The results obtained by the two systems were very similar. The FEV0-75 was selected as the most appropriate forced expiratory volume for routine clinical use. Normal data charts for FEV0-75 and FVG are presented. |