| Variable | LTOT | NIV | |||||
| No | Median | IQR | No | Median | IQR | Significance* | |
| SF36 Physical functioning | 40 | 10.0 | 28.8 | 50 | 5.0 | 17.5 | 0.307 |
| SF36 Role physical | 40 | 12.5 | 43.8 | 50 | 0.0 | 50.0 | 0.470 |
| SF36 Bodily pain | 40 | 73.0 | 47.5 | 50 | 61.0 | 61.3 | 0.253 |
| SF36 General health | 39 | 32.0 | 25.0 | 50 | 20.0 | 26.3 | 0.002 |
| SF36 Vitality | 40 | 45.0 | 25.0 | 50 | 35.0 | 25.0 | 0.107 |
| SF36 Social functioning | 40 | 56.3 | 50.0 | 50 | 50.0 | 65.6 | 0.340 |
| SF36 Role emotional | 40 | 100.0 | 66.7 | 50 | 66.7 | 100.0 | 0.286 |
| SF36 Mental health | 40 | 80.0 | 16.0 | 50 | 70.0 | 40.0 | 0.009 |
*Adjusted for ranked baseline values.
IQR, interquartile range; LTOT, long-term oxygen therapy; NIV, non-invasive ventilation.