SD = Standard Deviation, n=number of participants, † Asthma is derived from questionnaire by parents answering the question: ’Does your child still have asthma?’ (n=20 had missing value on ‘current asthma’ but the method allows missing values in the outcome-variables), ‡ Parts per billion (ppb), § Sensitization to aeroallergens: sIgE≥0.35 kU_A/L to Phadiatop (birch, timothy, mugwort, cat, dog, horse, house dust mites, and mold), ^¶ Based on whether either the mother or father answered ‘yes’ if they had asthma on the questionnaire, ^# Regular use of ICS during the last 12 months.