Table 3 Z-scores of Lung function parameters on ECCS references.
Parameter | Young | Middle aged | Elder | z-score regressions |
|---|---|---|---|---|
IVC-z-score | 0.01 ± 0.65 | 0.16 ± 0.66 | -0.21 ± 0.48 | Y = -0.0002x2 + 0.018x -0.29 r2 = 0.017* |
FVC-z-score | 0.42 ± 0.97 | 0.38 ± 0.89 | -0.16 ± 0.73 | y = -0.001x2 + 0.027x + 0.011 r2 = 0.064** |
FEV 1 -z-score | 0.54 ± 0.99 | 0.31 ± 0.83 | -0.07 ± 0.65 | Y = -0.0001x2 +0,003x +0.563 r2 = 0.069** |
FEV 1 %IVC-z-score | 0.10 ± 0.76 | 0.07 ± 0.79 | 0.25 ± 0.85 | Y = 0.0002x2 -0.01x +0.333 r2 = 0.010 n.s. |
PEF-z-score | 0.52 ± 1.37 | 0.22 ± 1.40 | -0.19 ± 1.04 | Y = -0.0001x2 +0.003x +0.563 r2 = 0.069 ** |
MEF 50 -z-score | 0.19 ± 1.01 | -0.24 ± 0.96 | -0.13 ± 0.73 | Y = -0.0002x2 -0.031x + 0.813 r2 = 0.0392* |