Fig. 3.

a Medication dosage at 12 months. All inhalation corticosteroid medication usage has been converted to beclomethasone equivalent. The ‘exacerbators’ phenotype had the highest dosage beclomethasone (794 µg) and the ‘early atopic’ group had the lowest dose (496 µg). The reversible group had an average dose of 628 µg. b Medication entry–exit level. This figure shows the mean guideline derived medication usage for each phenotype, with steps from 0 (no medication) to 5 (daily oral prednisolone).²⁶ Over time it can be noted that while most phenotypes stayed roughly in the same medication step, the mean increase in medication usage for the ‘exacerbators’ phenotype was nearly one step. Phenotype ‘reversible’ also had a considerate increase in medication usage (from 2.0 to 2.4)