did not reach statistical significancep = 0.0571
However, the within-group longitudinal change in FEV1 did not reach statistical significance in either group ( p = 0.0571 and p = 0.0555, respectively).
However, the within-group longitudinal change in FEV1 did not reach statistical significance in either group ( p = 0.0571 and p = 0.0555, respectively).