Fig. 3

Monotherapy and polytherapy regimes: classes of drugs and main prescription drivers. a Use of the different classes of drugs within either monotherapy or polytherapy regimens. Monotherapy involves the use of a single drug, while polytherapy regimens are based on the use of different drugs. Data are expressed as % of patients. Chi squared test was used to investigate differences in the observed frequencies across specialty area. b Main prescription drivers in monotherapy and polytherapy regimes. Data are expressed as % of patients. Chi squared test was used to investigate differences in the frequencies across the different drugs. Aze/flu fixed-dose combination azelastine/fluticasone