Statistics
Statistical analysis was performed using IBM SPSS Statistics 25
(Chicago, IL, USA).
Basic frequency distributions were used to describe different
characteristics: demographic data, atopic history, co-factors, symptoms,
severity and timing of reactions, pre-hospital and medically
administered care, long-term management. Mann-Whitney U test was
used for comparison between the 2 subgroups; a p value <0.05
was considered to be statistically significant.