Table 4 Factors Associated with supply of Adrenaline Autoinjector (AAI) and Allergy/Anaphylaxis Plan (AAP) on hospital discharge
| Â | AAI supplied on dischargea | p-value | AAP supplied on dischargea | p-value | ||
|---|---|---|---|---|---|---|
| Â | Yes | No | Â | Yes | No | Â |
|  | N = 180 | N = 121 |  | N = 91 | N = 205 |  |
Sex | Â | Â | 0.098 | Â | Â | 0.313 |
 Male | 88 (49%) | 47 (39%) |  | 45 (49%) | 88 (43%) |  |
 Female | 92 (51%) | 74 (61%) |  | 46 (51%) | 117 (57%) |  |
Age category | Â | Â | 0.525 | Â | Â | 0.584 |
 Paediatric | 57 (32%) | 34 (28%) |  | 30 (33%) | 60 (29%) |  |
 Adult | 123 (68%) | 87 (72%) |  | 61 (67%) | 145 (71%) |  |
 History of anaphylaxis | 101 (56%) | 64 (53%) | 0.637 | 32 (35%) | 121 (59%) |  < 0.001 |
Comorbid conditions | ||||||
 Asthma | 59 (33%) | 35 (29%) | 0.527 | 32 (35%) | 58 (28%) | 0.274 |
 Eczema | 17 (9%) | 8 (7%) | 0.523 | 8 (9%) | 19 (9%) | 1.000 |
 Allergic rhinitis | 11 (6%) | 4 (3%) | 0.419 | 3 (3%) | 12 (6%) | 0.566 |
 Cardiovascular disease | 30 (17%) | 11 (9%) | 0.086 | 17 (19%) | 24 (12%) | 0.144 |
Reacted to previously identified trigger | 75 (50%) | 45 (50%) | 1.000 | 29 (38%) | 82 (52%) | 0.051 |
Suspected Trigger* | Â | Â | 0.167 | Â | Â | 0.009 |
 Food | 99 (55%) | 57 (47%) |  | 48 (53%) | 103 (50%) |  |
 Venom | 31 (17%) | 16 (13%) |  | 23 (25%) | 25 (12%) |  |
 Unknown | 41 (23%) | 37 (31%) |  | 17 (19%) | 60 (29%) |  |
 Other | 9 (5%) | 11 (9%) |  | 3 (3%) | 17 (8%) |  |
Anaphylaxis symptoms | Â | Â | Â | Â | Â | Â |
 Pre-hospital | 174 (97%) | 112 (93%) | 0.175 | 82 (90%) | 186 (91%) | 0.833 |
 On arrival to ED | 114 (63%) | 61 (50%) | 0.032 | 67 (74%) | 102 (50%) |  < 0.001 |
 Deterioration in ED | 27 (15%) | 7 (6%) | 0.015 | 22 (24%) | 13 (6%) |  < 0.001 |
Received adrenaline | ||||||
 Any time | 160 (89%) | 47 (39%) |  < 0.001 | 83 (91%) | 121 (59%) |  < 0.001 |
 Pre-hospital | 94 (52%) | 20 (17%) |  < 0.001 | 34 (37%) | 74 (36%) | 0.896 |
 ED | 80 (44%) | 31 (26%) |  < 0.001 | 58 (64%) | 54 (26%) |  < 0.001 |
Total adrenaline doses |  |  |  < 0.001 |  |  |  < 0.001 |
 0 | 20 (11%) | 74 (61%) |  | 8 (9%) | 84 (41%) |  |
 1 | 114 (63%) | 38 (31%) |  | 55 (60%) | 100 (49%) |  |
 ≥ 2 | 46 (26%) | 9 (7%) |  | 28 (30%) | 21 (9%) |  |
Presented in business hours (Mon-Fri 8am-4 pm) | 89 (49%) | 37 (31%) | 0.001 | 64 (70%) | 56 (27%) |  < 0.001 |
Length of stay in ED/hospital |  |  |  < 0.001 |  |  |  < 0.001 |
 < 4 h | 49 (27%) | 57 (47%) |  | 12 (13%) | 93 (45%) |  |
4–12 h | 75 (42%) | 49 (40%) |  | 29 (32%) | 86 (42%) |  |
12–24 h | 46 (26%) | 11 (9%) |  | 44 (48%) | 18 (9%) |  |
24 + hours | 10 (6%) | 4 (3%) |  | 6 (7%) | 8 (4%) |  |
Discharge Unit |  |  | 0.010 |  |  |  < 0.001 |
ED | 147 (82%) | 112 (93%) | Â | 64 (70%) | 187 (91%) | Â |
Inpatient Unit | 33 (18%) | 9 (7%) | Â | 27 (30%) | 18 (9%) | Â |