Final PFTs
The median duration of follow-up was 29 months (range: 6-80 months). At
the final PFTs, the median values for FEV1, FVC,
FEV1/FVC ratio and MMEF25%–75% were
57.8%, 76.1%, 77.85% and 26.2% respectively (Table 2), while the
children with positive results for bronchodilator responses were 7
(58.3%) (data was not given). The improvements were also significant
when the mean percent variation from the previous measurement was
calculated (increases of 15.89% and 24.65% for FEV1and MMEF25-75%, respectively). The improved percentage
was not as high as that in the baseline PFTs. And the mean absolute
volume change was 0.16 L for FEV1 and 0.18L/s for
MMEF25%-75% (Table 3).