TABLE I.
Reported cases of anaphylaxis: General characteristics by age group, 1990–2016
| <4 y (%), n = 118 |
4–10 y (%), n = 267 |
11–18 y (%), n = 93 |
19–49 y (%), n = 233 |
≥50 y (%), n = 117 |
Total (%), n = 828 |
|
|---|---|---|---|---|---|---|
| Seriousness of report | ||||||
| Deaths | 1 (1) | 0 (0) | 0 (0) | 3 (1) | 4 (3) | 8 (1) |
| Serious, nondeath* | 98 (83) | 229 (86) | 70 (75) | 173 (74) | 84 (72) | 654 (79) |
| Nonserious | 19 (16) | 38 (14) | 23 (25) | 57 (24) | 29 (25) | 166 (20) |
| Sex of reported patient | ||||||
| Male | 77 (65) | 189 (71) | 43 (46) | 40 (17) | 31 (26) | 380 (46) |
| Female | 40 (34) | 78 (29) | 50 (54) | 193 (83) | 86 (74) | 447 (54) |
| Not reported | 1 (1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (0) |
| Time to onset of symptoms | ||||||
| <30 min | 59 (50) | 176 (66) | 36 (39) | 96 (41) | 35 (30) | 402 (49) |
| 30–119 min | 27 (23) | 46 (17) | 18 (19) | 58 (25) | 18 (15) | 167 (20) |
| 2–4 h | 11 (9) | 7 (3) | 16 (17) | 27 (12) | 18 (15) | 79 (10) |
| 4–8 h | 8 (7) | 6 (2) | 2 (2) | 13 (6) | 15 (13) | 44 (5) |
| 8–24 h | 7 (6) | 2 (1) | 7 (8) | 12(5) | 15 (13) | 43 (5) |
| Not reported | 6(5) | 30 (11) | 14 (15) | 27 (12) | 16 (14) | 93 (11) |
| Classification | ||||||
| Brighton level 1 | 64 (54) | 157 (59) | 44 (47) | 81 (35) | 39 (33) | 385 (46) |
| Brighton level 2 | 42 (36) | 81 (30) | 24 (26) | 114 (49) | 54 (46) | 315 (38) |
| Brighton level 3 | 2 (2) | 1 (0) | 1 (1) | 2 (1) | 1 (1) | 7 (1) |
| Physician diagnosed | 10 (8) | 28 (10) | 24 (26) | 36 (15) | 23 (20) | 121 (15) |
*
Reports in which the patient was hospitalized, had prolongation of hospitalization, had permanent disability, or experienced a life-threatening condition.