Table 1– Proportion of children with current wheeze who reported different trigger factors (exercise, allergens and infection) by age
Age yrs
1469
Subjects n1447612471290
Any trigger (exercise, allergens or infection)95.794.695.394.8
Exercise35.544.048.636.9
Allergens7.524.834.862.4
Infection94.190.089.081.0
Combination of triggers
 Exercise1.22.51.72.1
 Allergens0.21.13.49.0
 Infection57.141.333.621.0
 Exercise and allergens0.11.01.32.8
 Exercise and infection29.926.025.39.3
 Allergens and infection2.88.29.827.9
 Exercise, allergens and infection4.314.520.422.8
  • Data are presented as %, unless otherwise stated. Exercise: running/playing and/or laughing/crying/excitement; allergens: food/drink and/or pollen/grass; infection: colds.