Comparison of basic characteristics taking into account the gender of patients
| Parameters | Total (N = 428) | Boys (N = 312) | Girls (N = 116) | W | P-value |
|---|---|---|---|---|---|
| Age (years) | 12.0 [9.0; 14.0] | 11.5 [9.0; 14.0] | 12.0 [9.0; 15.0] | 18,400.0 | 0.79 |
| Height (сm) | 153.0 [140.0; 168.0] | 153.0 [140.0; 171.0] | 153.0 [136.5; 164.0] | 15,251.0 | 0.012 |
| Weight (kg) | 47.6 [32.3; 62.0] | 49.0 [35.2; 63.3] | 46.1 [32.5; 59.0] | 16,066.5 | 0.07 |
| BMI (kg/m2) | 19.64 [17.27; 22.66] | 19.70 [17.33; 22.69] | 19.19 [17.22; 22.45] | 17,250.5 | 0.46 |
| BMI Z-score | 0.58 [–0.18; 1.29] | 0.61 [–0.13; 1.33] | 0.44 [–0.33; 1.15] | 15,981.5 | 0.06 |
| ACQ-5 (score) | 0.7 [0.1; 1.4] | 0.7 [0.1; 1.4] | 0.7 [0.2; 1.2] | 4,520.5 | 0.94 |
| FVC (L) | 3.30 [2.60; 4.44] | 3.35 [2.68; 4.61] | 3.11 [2.45; 4.01] | 14,578.0 | 0.002 |
| Z FVC | 1.08 [0.81; 2.09] | 1.05 [0.34; 1.77] | 1.17 [0.46; 2.01] | 19,353.0 | 0.27 |
| FEV1 (L) | 2.50 [1.97; 3.47] | 2.50 [2.02; 3.60] | 2.50 [1.83; 3.20] | 15,814.5 | 0.045 |
| Z FEV1 | 0.15 [–0.74; 0.94] | 0.01 [–0.80; 0.99] | 0.26 [–0.41; 0.87] | 19,450.0 | 0.23 |
| FEV1/FVC (%) | 78.37 [70.80; 83.61] | 77.55 [69.96; 82.96] | 80.59 [74.33; 85.43] | 21,489.5 | 0.003 |
| Z FEV1/FVC | –1.41 [–2.23; –0.54] | –1.34 [–2.28; –0.50] | –1.35 [–2.11; –0.65] | 18,220.0 | 0.91 |
| MEF25% (L/s) | 1.05 [0.69; 1.58] | 1.04 [0.68; 1.60] | 1.06 [0.72; 1.56] | 18,539.0 | 0.70 |
| MEF25% (%) | 59.6 [42.84; 84.27] | 57.69 [41.34; 84.27] | 66.57 [48.51; 84.87] | 19,741.0 | 0.15 |
| FEF25–75% (L/s) | 2.12 [1.52; 3.08] | 2.12 [1.51; 3.11] | 2.13 [1.53; 3.04] | 18,023.5 | 0.95 |
| FEF25–75% (%) | 72.21 [54.84; 91.12] | 69.68 [54.08; 91.12] | 77.15 [62.49; 91.2] | 19,696.5 | 0.16 |
| DR (%) | 0.67 [0.50; 0.84] | 0.65 [0.48; 0.81] | 0.74 [0.58; 0.87] | 21,430.0 | 0.003 |
P < 0.05 represents a significant difference in results. N: number; W: Wilcoxon’s W test; MEF25%: maximal expiratory flow 25% of FVC
