Table 1—

Prevalence of selected health outcomes at 4 yrs of age in the full cohort and of sensitisation to specific allergens based on immunoglobulin(Ig)E measurement in a cohort subset

VariableSubjectsPrevalence %
Wheeze429 (3528)12.2
Doctor-diagnosed asthma144 (3533)4.1
Dry cough at night with/without cold782 (3537)22.1
Doctor-diagnosed bronchitis214 (3501)6.1
Itchy rash906 (3537)25.6
Doctor-diagnosed eczema503 (3518)14.3
Ear/nose/throat infections1047 (3549)29.5
Doctor-diagnosed flu, serious cold760 (3521)21.6
Any positive sp IgE277 (713)38.8
Any indoor positive sp IgE118 (713)16.5
 Cat allergen positive44 (708)6.2
 Dog allergen positive26 (706)3.7
 Dust mite allergen positive101 (713)14.2
Any outdoor positive sp IgE57 (698)8.2
 Dactylium positive47 (698)6.7
 Birch positive16 (696)2.3
 Alternaria positive11 (680)1.7
Any food positive sp IgE194 (689)28.1
 Milk allergen positive182 (689)26.4
 Egg allergen positive51 (681)7.5
Total IgE >100 IU·mL−1186 (713)26.1
  • Data for subjects are presented as number presenting with symptom, condition or positive IgE reaction to a specific allergen; with the total number of subjects, evaluated based on completion of a questionnaire at 4 yrs and allergy testing where applicable, given in parentheses. sp: Specific serum. All outcomes refer to incidence or diagnoses within the previous 12 months, the period between 3–4 yrs of age (see online supplementary material).