Stable incidence of newly reported drug allergy between 2016-2019 with a significant drop in 2020
In 2016, 25,810 new physician-reported drug allergy labels were created with an incidence of 352 per 100,000 population. The annual incidence remained relatively stable from 2016 to 2017 (352 per 100,000), 2018 (337 per 100,000) and 2019 (331 per 100,000) (p=0.200). There was no significant change in incidence rate until a significant decrease in 2020 to 277 per 100,000 (p=0.037). The annual incidence and relative differences of physician-reported drug allergy are shown in Figure 1.