Table 1.
| | z-score (mean ± SD) | range | pr. predicted. |
| FEV1/FVC GLI2012 | 0,098 0,80 (NS)± | -1,54 2,14± | 100,2 5,1± |
| FEV1/FVC Stanojevic | -0,15 0,79 (NS)± | -1,81 1,88± | 98,7 5,1± |
| FEV0.75/FVC Stanojevic | -0,21 0,77 (NS)± | -1,75 1,92± | 97,9 6,3± |
NS - not different from 0 by Student's t-test