Fewer than 15% of anaphylaxis survivors prescribed AAI and adult patients significantly less likely to have prescriptions
Overall, 14.8% (422/2,854) patients admitted for anaphylaxis had prescribed AAI on their medication record prior to discharge. To identify factors associated with AAI prescription, the demographics and clinical demographics (including age, gender, number of admissions, length of stay) were included in univariate analysis. Male gender (59.0% vs 50.3%, P =0.001) and adult age group (36.5% vs. 89.4%, P <0.001) were found to be significant factors in univariate analysis (P <0.10), but other variables including number of admissions and length of stay did not reach statistical significance (data not shown). Further multivariate analysis confirmed that only age group was independently associated with AAI prescription while gender was not. Pediatric patients admitted for anaphylaxis were significantly more likely to be prescribed AAI compared to adult patients (OR=14.434, 95% CI=11.378-183.310,P <0.001).