Participant characteristics
A total of 142 adults took part (the study recruitment flow diagram is shown in Figure 1). Adults mainly reported anaphylaxis to medication, during general anaesthesia, to food, bee or wasp venom, latex, or had spontaneous or exercise-induced anaphylaxis. A minority of adults (12.7%) self-reported allergies to more than one of these categories and n=2 participants had anaphylaxis to more than one cause (both to food and venom). Demographic and clinical information is summarised in Table 1.