Variables | Study group (N = 95) Mean ± SD | Control group (N = 95) Mean ± SD | T test | p-value |
Pre-bronchodilator FEV1 (L) | 1.93 ± 0.43 | 2.17 ± 0.54 | 3.38 | 0.001 |
Pre-bronchodilator FVC (L) | 2.54 ± 0.37 | 2.88 ± 0.62 | 4.49 | <0.001 |
Pre-bronchodilator FEV1/FVC (%) | 91.23 ± 6.17 | 98.69 ± 4.33 | - | 0.677 |
Post-bronchodilator FEV1 (L) | 2.19 ± 0.46 | 2.30 ± 0.55 | 1.50 | 0.136 |
Post-bronchodilator FVC (L) | 2.92 ± 0.41 | 2.97 ± 0.66 | 0.59 | 0.560 |
Post-bronchodilator FEV1/FVC (%) | 96.23 ± 7.27 | 98.92 ± 2.43 | - | 0.347 |
Pre-bronchodilator PEFR (L/min) | 3.91 ± 0.74 | 4.42 ± 1.26 | 3.38 | 0.001 |
Post-bronchodilator PEFR (L/min) | 4.37 ± 0.81 | 4.58 ± 1.37 | 1.28 | 0.202 |