Fig. 1.

Distribution of corticosteroid use in the study sample. Superimposed pie chart illustrating for each corticosteroid type the total number of users and the proportion of single-type use. The former is presented as the size of each slice and is also written in text beside. The radial length marks the percentage of users within each type who were not using any other corticosteroid types. These groups of single-type users were used to assess the associations for the specific administration forms. Single-type use was most prevalent in dermal corticosteroid users (77.6%) while nasal corticosteroids were relatively most often combined with other types of corticosteroids.