Table 8.
Relationship between emphysema and airway quantitative imaging analysis parameters and pulmonary function measurements among deployers
| Variable | n | Estimated change βa [95% CI] | |
|---|---|---|---|
| + 1% LAA%-950 | + 1 mm Pi10 | ||
| FEV1PP | 82 | − 0.4 [− 1.0, 0.2] | − 14.1 [− 19.6, − 8.5] |
| FEV1/FVC | 82 | − 0.4 [− 0.7, − 0.05] | − 8.6 [− 11.5, − 5.7] |
| RVPP | 76 | 0.4 [− 0.5, 1.3] | 11.6 [2.4, 20.9] |
| RV/TLC | 76 | 0.2 [− 0.04, 0.4] | 1.7 [− 0.7, 4.2] |
| DLCOPP | 75 | − 0.8 [− 1.8, 0.06] | 0.6 [-9.4, 10.7] |
Bold values are statistically significant
a = All measures were adjusted for smoking pack-years and body mass index. LAA%-950, Pi10, and LAA%-856 are also adjusted for total lung volume (inspiratory or expiratory as appropriate)