Table 2

Numbers of infants with identified pre-existing risk factors for bronchiolitis

Total number of infants117
Born ⩽36 weeks gestation10 (8%)
Any siblings86 (73%)
Pre-existing cardiac disease2-150 5 (4%)
Pre-existing lung disease2-151 2 (2%)

  • ↵2-150 Two large ventricular septal defects, one Fallot plus double outlet right ventricle, one Fallot with Blalock-Taussig shunt, one atrioventricular septal defect.

  • ↵2-151 Both chronic lung disease of prematurity.