Patient group | Number of patients | Coefficient | p-value |
Total patients | 837 | ||
Tracheostomy | 53 | 2.90 | <0.0001 |
1. Respiratory conditions | 256 | ||
a) Airway disease | 220 | −0.24 | 0.589 |
b) CF and bronchiectasis | 31 | 2.48 | <0.0001 |
c) Interstitial lung diseases | 5 | 0.04 | 0.972 |
2. Restrictive chest wall conditions | 54 | −0.98 | 0.117 |
3. Diaphragm palsy | 21 | −2.00 | 0.083 |
4. OHS and OSA | 162 | −1.83 | 0.001 |
5. Neuromuscular and neurological conditions | 329 | ||
a) MND | 53 | −2.14 | 0.004 |
b) DMD | 26 | −0.13 | 0.840 |
c) All other neuromuscular disease | 111 | −0.75 | |
d) Cerebral palsy | 19 | 0.65 | 0.302 |
e) Spinal cord injury | 45 | – | – |
f) Other neurological conditions | 75 | −0.23 | 0.121 |
6. Other | 15 | −0.17 | 0.828 |
CF: cystic fibrosis; OHS: obesity hypoventilation syndrome; OSA: obstructive sleep apnoea; MND: motor neurone disease; DMD: Duchenne muscular dystrophy.