Table 2. Mean and standard deviations for lung function parameters.
| Parameter | Control group(n = 21) | DPT but no CPA involvement (n = 10) | Unilateral DPT (n = 15) | Bilateral DPT (n = 12) |
|---|---|---|---|---|
| FEV1 (L) | 2.5 ± 0.6 | 2.1 ± 0.5 | 1.9 ± 0.5 | 1.7 ± 0.4 |
| FEV1 % predicted | 86.9 ± 19.3 | 72.0 ± 15.7 | 65.7 ± 17.7 | 57.7 ± 10.0 |
| FVC (L) | 3.8 ± 0.7 | 3.0 ± 0.9 | 3.0 ± 0.6 | 2.5 ± 0.8 |
| FVC % predicted | 98.9 ± 15.2 | 83.5 ± 25.9 | 79.5 ± 13.0 | 66.7 ± 15.6 |
| FEV1/FVC ratio | 68.1 ± 13.1 | 69.9 ± 13.9 | 63.9 ± 14.0 | 64.9 ± 11.8 |
| TLC (L) | 6.2 ± 0.8 | 5.0 ± 0.9 | 5.4 ± 1.3 | 4.4 ± 0.6 |
| TLC % predicted | 91.1 ± 9.4 | 77.2 ± 16.4 | 82.4 ± 20.8 | 66.6 ± 8.6 |
| TLCo % predicted | 80.1 ± 23.3 | 62.8 ± 15.2 | 69.5 ± 17.5 | 61.4 ± 11.9 |
| KCO % predicted | 92.9 ± 24.9 | 96 ± 17.2 | 102.5 ± 22.4 | 104.8 ± 22.0 |
| BMI | 28.2 ± 3.6 | 31 ± 4.4 | 28.9 ± 2.8 | 28.5 ± 4.4 |
BMI, body mass index; CPA, costophrenic angle; DPT, diffuse pleural thickening; FEV1, forced expiratory volume in 1 s; FVC,forced vital capacity; KCO, diffusion coefficient; TLC,total lung capacity; TLCo, gas transfer.