| Control Group (I) (n = 100) | Study Group (II) (n = 89) | t Value | p Value |
FEV1 | 83.58 ± 7.14 | 62.12 ± 8.22 | 19.039 | 0.001* |
FVC | 93.69 ± 10.31 | 58.60 ± 9.62 | 24.103 | 0.001* |
FEV1/FVC | 84.52 ± 6.58 | 84.63 ± 13.70 | −0.069 | 0.945 |
PEFR | 99.97 ± 8.06 | 64.85 ± 15.27 | 19.422 | 0.001* |
FEF25% - 75% | 3.59 ± 0.49 | 3.09 ± 1.03 | 4.116 | 0.001* |