Table 3. Mean values of quantitative lung parameters for different age groups.
| 0–5 | 6–10 | 11–15 | 16–20 | 21–25 | 26–30 | p-value | ||
|---|---|---|---|---|---|---|---|---|
| Volume | Group 2 | 0.4±0.2 | 1.3±0.6 | 2.3±1 | 3.7±1 | 3.9±1 | 4.6±1.3 | <.0001 |
| Group 1 | 0.5±0.5 | 1.4±0.4 | 3.2±0.8 | 4±1.3 | 4.4±0.6 | 5.1±1.2 | <.0001 | |
| MLD | Group 2 | -480±76 | -587±126 | -697±81 | -750±43 | -755±51 | -772±56 | <.0001 |
| Group 1 | -592±55 | -748±74 | -812±27 | -818±25 | -823±23 | -819±42 | <.0001 | |
| FWHM | Group 2 | 236±13 | 204±16 | 138±12 | 109±11 | 115±9 | 105±8 | <.0001 |
| Group 1 | 196±42 | 116±29 | 98±21 | 97±24 | 75±19 | 89±21 | <.0001 | |
| LAV | Group 2 | 0.01±0.03 | 0.1±0.2 | 0.1±0.2 | 0.3±0.5 | 0.4±0.6 | 1.2±2 | 0.0173 |
| Group 1 | 0.04±0.1 | 0.3±0.3 | 1.3±0.9 | 1.8±2.3 | 0.8±1 | 2±1.7 | 0.0504 |
Shown are the mean values with standard deviation of the four quantitative lung parameters for every age group. Volume is shown in liter, mean lung density (MLD) in HU, full width at half maximum (FWHM) in HU and low attenuated volume in percentage of total lung volume.
The p-value shows the significance level of the ANOVA, suggesting significant difference between age groups for every parameter, except the LAV in group 1.