TABLE 1

Underlying conditions

ConditionnConditionn
Respiratory conditionsUnderlying neurological conditions
 Non-CF bronchiectasis10 Guillain–Barre syndrome2
 Laryngomalacia1 Mental retardation2
 Congenital bronchial stenosis1 Rett syndrome1
 Chronic aspiration pneumonia1 Epilepsy2
 Pulmonary hypertension3 Hypoxic encephalopathy2
 Bronchiolitis obliterans1 Ataxia telangiectasia1
 Interstitial lung disease2 Autism1
 Surfactant deficit syndrome1 Neuromuscular disease1
 Tracheostomy2
 Severe bronchomalacia1Renal conditions
 Wheezing1 Renal transplant1
 Chronic renal insufficiency2
Cardiac conditions Polycystic renal disease1
 Congenital heart disease6 Other1
 Supraventricular arrhythmia1
Miscellaneous
Oncological/haematological conditions Charge syndrome1
 Unclassified oncological condition3 Down syndrome4
 Neuroblastoma2 Malformative syndrome1
 Medulloblastoma1 Crohn disease1
 Malignancy1 Exostoses1
 Leukaemia3 Mild malnutrition1
 Thrombocytosis1 Pierre Robin sequence1
 SCID1 Prader–Willi syndrome1
 Liver transplantation1
 Portal hypertension1
 Diabetes mellitus1