Table 2.
Demographic Information of Anaphylaxis Cases from Different Etiologies.
| Variable | Total (n = 76) | Cause of anaphylaxis | P-value | |||||
|---|---|---|---|---|---|---|---|---|
| Idiopathic (n = 24) | Infection (n = 1) | Foods (n = 28) | Insect stings (n = 11) | Exercise (n = 1) | Drugs (n = 11) | |||
| Gender | ||||||||
| Male | 49 (64.47) | 15 (62.5) | 1 (100) | 20 (71.43) | 9 (81.82) | 1 (100) | 3 (27.27) | .080 |
| Female | 27 (35.53) | 9 (37.5) | 0 (0) | 8 (28.57) | 2 (18.18) | 0 (0) | 8 (72.73) | |
| Age (years) | ||||||||
| Mean ± SD | 13.72 (3.88) | 15.46 (2.21) | 8.17 | 12.68 (4.77) | 13.51 (3.46) | 14.08 | 13.24 (3.79) | |
| Age | ||||||||
| ≤1 year | 2 (2.63) | 0 (0) | 0 (0) | 2 (7.14) | 0 (0) | 0 (0) | 0 (0) | .737 |
| 1-6 years | 3 (3.95) | 0 (0) | 0 (0) | 1 (3.57) | 1 (9.09) | 0 (0) | 1 (9.09) | |
| 7-12 years | 19 (25) | 4 (16.67) | 1 (100) | 8 (28.57) | 3 (27.27) | 0 (0) | 3 (27.27) | |
| 13-18 years | 52 (68.42) | 20 (83.33) | 0 (0) | 17 (60.71) | 7 (63.64) | 1 (100) | 7 (63.64) | |
| Underlying disease | ||||||||
| Known food allergy | 10 (13.16) | 0 (0) | 1 (100) | 6 (21.43) | 1 (9.09) | 0 (0) | 2 (18.18) | .029* |
| Atopic dermatitis | 9 (11.84) | 3 (12.5) | 0 (0) | 4 (14.29) | 1 (9.09) | 0 (0) | 1 (9.09) | .988 |
| Allergic rhinitis | 8 (10.53) | 2 (8.33) | 1 (100) | 1 (3.57) | 2 (18.18) | 0 (0) | 2 (18.18) | .042 |
| Asthma | 19 (25) | 5 (20.83) | 0 (0) | 9 (32.14) | 0 (0) | 0 (0) | 5 (45.45) | .169 |
| Fever | ||||||||
| No | 69 (90.79) | 21 (87.5) | 0 (0) | 27 (96.43) | 10 (90.91) | 1 (100) | 10 (90.91) | .045 |
| Yes | 7 (9.21) | 3 (12.5) | 1 (100) | 1 (3.57) | 1 (9.09) | 0 (0) | 1 (9.09) | |
| Length of stay (hours) | ||||||||
| Median (Min-max) | 24 (8-72) | 24 (8-48) | 72 | 24 (24-72) | 24 (24-48) | 24 | 24 (24-48) | .054 |
| Median (IQR) | 24 (24-24) | 24 (24-24) | 72 | 24 (24-48) | 24 (24-24) | 24 | 24 (24-48) | |
| Mean ± SD | 29.89 (14.57) | 24.67 (12.46) | 72 | 34.29 (16.56) | 26.18 (7.24) | 24 | 30.55 (11.21) | |
| Presenting symptoms | ||||||||
| Urticarial rash | 75 (98.68) | 24 (100) | 1 (100) | 28 (100) | 11 (100) | 1 (100) | 10 (90.91) | .307 |
| Angioedema | 24 (31.58) | 4 (16.67) | 0 (0) | 6 (21.43) | 7 (63.64) | 0 (0) | 7 (63.64) | .010* |
| Respiratory | 67 (88.16) | 22 (91.67) | 0 (0) | 23 (82.14) | 10 (90.91) | 1 (100) | 11 (100) | .065 |
| Gastrointestinal | 16 (21.05) | 3 (12.5) | 1 (100) | 10 (35.71) | 1 (9.09) | 0 (0) | 1 (9.09) | .060 |
| Cardiovascular | 7 (9.21) | 2 (8.33) | 0 (0) | 0 (0) | 4 (36.36) | 1 (100) | 0 (0) | <.001* |
*
Value of P < .05 indicates statistical significance.