Table 9.
Relationship between air trapping quantitative imaging analysis parameters and pulmonary function measurements among deployers
| Variable | n | Estimated change βa [95% CI] | ||
|---|---|---|---|---|
| + 0.1 E/I TLV Ratio | + 0.1 E/I MLD Ratio | + 1% LAA%-856 | ||
| FEV1PP | 62 | − 9.9 [− 15.6, − 4.1] | − 7.2 [− 13.5, − 0.9] | − 0.8 [− 2.1, 0.5] |
| FEV1/FVC | 62 | − 4.9 [− 7.7, − 2.2] | − 4.9 [− 7.8, − 2.0] | − 0.3 [− 0.9, 0.3] |
| RVPP | 59 | 9.5 [0.8, 18.3] | 12.3 [3.4, 21.2] | − 0.1 [− 1.8, 1.6] |
| RV/TLC | 59 | 5.0 [3.0, 6.9] | 4.6 [2.5, 6.7] | 0.4 [− 0.06, 0.9] |
| DLCOPP | 58 | 2.4 [− 7.0, 11.8] | 3.9 [− 5.8, 13.7] | − 1.3 [− 3.1, 0.6] |
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)