Fig 2.
Allergen-specific IgE levels (≥0.3 ISU-E) to cat (A) and dog (B) allergens in children with (white box plots) or without (gray box plots) symptoms to cat, dog, or both at 4, 8, and 16 years of age. Median IgE levels per age group (connected dotted lines) and P values are indicated. n, Number of children with positive results (N = 779); NA, not applicable (subgroup number <5 observations).