Table 2

Complications by primary or secondary care (derivation and validation cohorts).

Complications, nDerivation study n = 256Validation study n = 156
Primary care1818
 Otitis media14
 Viral illness10
 Viral-induced wheeze10
 Possible asthma32
 Cough and wheeze10
 Chest infection12
 Chicken pox11
 No diagnosis recordeda01
Hospital admissions50
 Whooping cough10
 Viral-induced wheeze10
  • a Antibiotics were started when not used at recruitment consultation. LRTI = lower respiratory tract infection.