Mean (SD) values of parameters before and after 1 year on NMV in patients with thoracic restriction (group A) and patients with COPD (group B)
| Group A | Group B | ||||||
|---|---|---|---|---|---|---|---|
| Baseline | After 1 year NMV | Mean change (95% CI) | Baseline | After 1 year NMV | Mean change (95% CI) | ||
| Pao 2 (kPa) | 6.4 (1.2) | 8.9 (1.3) | 2.5 (1.6 to 2.9)2-165 | 6.1 (0.8) | 7.2 (1.3) | 1.1 (0.5 to 1.8)2-165 | |
| Paco 2(kPa) | 7.8 (1.0) | 5.9 (0.6) | –1.9 (–2.4 to –1.3)2-165 | 8.0 (1.0) | 6.8 (1.0) | –1.2 (–2.0 to –0.8)2-165 | |
| pH | 7.35 (0.04) | 7.39 (0.03) | 0.04 (0.01 to 0.05)2-165 | 7.36 (0.4) | 7.39 (0.03) | 0.03 (0.01 to 0.05)2-165 | |
| Sao 2 mean (%) | 72.5 (9.5) | 90.5 (5.2) | 18.0 (12.1 to 30.4)2-165 | 76.2 (5.2) | 84.1 (3.5) | 7.9 (5.0 to 12.6)** | |
| Sao 2 nadir (%) | 55.0 (9.5) | 72.3 (10.0) | 17.7 (9.7 to 28.1)2-165 | 60.0 (5.7) | 68.5 (7.8) | 8.5 (3.4 to 14.1)** | |
2-150 Mean change in parameters (95% confidence interval, CI) from baseline to 1 year on NMV (**p<0.01,
↵2-165 p<0.001, Wilcoxon test).
Pao 2, Paco 2 = arterial oxygen and carbon dioxide tensions; Sao 2 = oxygen saturation during sleep.