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).