Increasing trend of AAI prescription, especially among adult
patients admitted for anaphylaxis
There was an overall increasing rate of AAI prescription for patients
admitted for anaphylaxis during the study period. The AAI prescription
rates among adult and pediatric patients with anaphylaxis are displayed
longitudinally in Figure 2. Patients admitted for anaphylaxis in the
year 2019 were significantly more likely to be prescribed an AAI
compared to those admitted in 2009 (27.9% vs. 5.1%; OR=7.263, 95%
CI=3.436-15.352; P <0.001). This difference was more
marked in subgroup analysis of adult patients (16.2% vs. 0.8%;
OR=25.180, 95% CI=3.427-185.020; P <0.001), but also
held true for pediatric patients (64.0% vs. 25.9%; OR=5.069, 95%
CI=1.928-13.329; P =0.001) between 2009 and 2019 .