TABLE 1.

Underlying conditions

Condition	n	Condition	n
Respiratory conditions		Underlying neurological conditions
Non-CF bronchiectasis	10	Guillain–Barre syndrome	2
Laryngomalacia	1	Mental retardation	2
Congenital bronchial stenosis	1	Rett syndrome	1
Chronic aspiration pneumonia	1	Epilepsy	2
Pulmonary hypertension	3	Hypoxic encephalopathy	2
Bronchiolitis obliterans	1	Ataxia telangiectasia	1
Interstitial lung disease	2	Autism	1
Surfactant deficit syndrome	1	Neuromuscular disease	1
Tracheostomy	2
Severe bronchomalacia	1	Renal conditions
Wheezing	1	Renal transplant	1
		Chronic renal insufficiency	2
Cardiac conditions		Polycystic renal disease	1
Congenital heart disease	6	Other	1
Supraventricular arrhythmia	1
		Miscellaneous
Oncological/haematological conditions		Charge syndrome	1
Unclassified oncological condition	3	Down syndrome	4
Neuroblastoma	2	Malformative syndrome	1
Medulloblastoma	1	Crohn disease	1
Malignancy	1	Exostoses	1
Leukaemia	3	Mild malnutrition	1
Thrombocytosis	1	Pierre Robin sequence	1
SCID	1	Prader–Willi syndrome	1
		Liver transplantation	1
		Portal hypertension	1
		Diabetes mellitus	1