Table 4.
Specific data of COPD and OHS patient groups on 1.1.2018
| COPD patients with NIV* (N = 102) |
COPD patients with LTOT (N = 169) |
p value | |
|---|---|---|---|
| Age at 1.1.2018 (years ± SD) | 71.2 ± 7.9 | 75.7 ± 7.7 | p < 0.001 |
| ACCI (mean ± SD) | 3.8 ± 2.4 | 5.1 ± 2.9 | p < 0.001 |
| Mortality (%) during 1.1.2018–1.1.2021 | 47.5 | 69.8 | p < 0.001 |
| Concomitant sleep apnea N (%) | 32 (31.4%) | 19 (11.2%) | p < 0.001 |
| BMI (mean ± SD) kg/m2 | 30.5 ± 8.3 | 26.8 ± 9.6 | p = 0.002 |
| AHI (mean ± SD)** | 28.7 ± 23.0 | 20.3 ± 17.3 | p = 0.306 |
COPD, chronic obstructive pulmonary disease; NIV, non-invasive ventilation; LTOT, long-term oxygen treatment; OHS, obesity hypoventilation syndrome; ACCI, age-adjusted Charlson co-morbity index; BMI, body mass index; AHI, apnea-hypopnea index
*Includes patients who underwent LTOT with their NIV
**AHI counted for patients with concomitant sleep apnea. The information was known for 31.4% of the NIV treated and 11.2% of the LTOT treated COPD patients