Table 5. Correlation between basic characteristics and lung function in children.
| Lung function indices | Height, β (95% CI) | Weight, β (95% CI) | Preterm birth, t/F; P |
Low birth weight, t/F; P |
Duration of exclusive breastfeeding, t/F; P | Respiratory diseases, t/F; P |
|---|---|---|---|---|---|---|
| FVC (L) | 0.033 (0.031–0.036) | 0.031 (0.028–0.033) | −0.652; 0.514 | −1.264; 0.207 | 0.992; 0.396 | −0.118; 0.906 |
| FEV1 (L) | 0.031 (0.029–0.033) | 0.028 (0.025–0.030) | −0.646; 0.519 | −0.816; 0.415 | 1.075; 0.359 | 0.973; 0.331 |
| PEF (L/s) | 0.055 (0.049–0.061) | 0.049 (0.042–0.055) | −0.959; 0.338 | −0.587; 0.557 | 0.844; 0.470 | 2.337; 0.020 |
| FEF25–75 (L/s) | 0.031 (0.030–0.031) | 0.024 (0.023–0.026) | −0.533; 0.594 | −0.062; 0.950 | 1.615; 0.184 | 2.288; 0.022 |
| FEV3 (L) | 0.033 (0.031–0.036) | 0.031 (0.028–0.033) | −0.664; 0.520 | −1.255; 0.210 | 1.043; 0.373 | −0.151; 0.880 |
FVC, forced vital capacity; FEV1, forced expiratory volume in the first second; PEF, peak expiratory flow.