Table 3.
Descriptive characteristics, focusing on the ratio of airway X-Ai to lung volume of the available study population who underwent CT analysis
| Group | SUBJECTS (n = 10) | EMPHYSEMA (n = 21) | CONTROLS (n = 16) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Tr, WA, % | 21.0 | ± | 3.6 | 22.1 | ± | 5.6 | 22.4 | ± | 3.1 |
| rB1 WA, % | 52.1 | ± | 5.1 | 49.1 | ± | 5.0 | 49.6 | ± | 4.4 |
| rB7 WA, % | 51.8 | ± | 3.7 | 51.4 | ± | 4.64 | 50.9 | ± | 3.8 |
| TrX-Ai/VC | 44.8 | ± | 11.5* | 44.2 | ± | 15.3 $$ | 61.3 | ± | 20.3 |
| Tr X-Ai /FVC | 46.5 | ± | 12.4* | 45.6 | ± | 15.9 $$ | 64.0 | ± | 21.2 |
| rB1X-Ai /VC | 5.45 | ± | 2.30* | 6.05 | ± | 2.05 $ | 8.0 | ± | 2.3 |
| rB1X-Ai /FVC | 5.62 | ± | 2.28* | 6.23 | ± | 2.09 $ | 8.3 | ± | 2.5 |
| rB7 X-Ai /VC | 5.34 | ± | 1.16 | 5.26 | ± | 1.51 $ | 6.80 | ± | 1.85 |
| rB7X-Ai /FVC | 5.52 | ± | 1.1 2 | 5.43 | ± | 1.58 $ | 7.09 | ± | 1.92 |
Values are mean ± SD. Trachea; Tr, Wall area; WA, Right B1; rB1, Right B7; rB7, inner cross sectional luminal area at trachea; TrX-Ai, inner cross sectional luminal area at rB1; rB1 X-Ai, inner cross sectional luminal area at rB7; rB7 X-Ai.
* Significantly different from CONTROLS (p < 0.05).
$Significantly different from CONTROLS (p < 0.05).
$$Significantly different from CONTROLS (p < 0.01).