Table 1 Baseline characteristics and clinical features of anaphylaxis patients according to the development of hypotension.
Variables | no hypotension (n = 300) | hypotension (n = 40) | P Value |
|---|---|---|---|
Demographic factor | |||
Age, years | 46.0 ± 15.5 | 42.7 ± 13.9 | 0.208 |
Male sex | 145 (48.3) | 18 (45.0) | 0.738 |
Comorbidity | |||
Hypertension | 39 (13.0) | 5 (12.5) | 1.000 |
Diabetes mellitus | 11 (3.7) | 0 (0.0) | 0.374 |
Cardiac disease | 14 (4.7) | 3 (7.5) | 0.705 |
Neoplasm | 29 (9.7) | 5 (12.5) | 0.781 |
CKD | 2 (0.7) | 1 (2.5) | 0.314 |
Bronchial asthma | 13 (4.3) | 1 (2.5) | 1.000 |
History of allergy | 109 (36.3) | 13 (32.5) | 0.727 |
History of anaphylaxis | 25 (8.3) | 3 (7.5) | 1.000 |
Symptoms and Signs | |||
Mucocutaneous | 261 (87.0) | 34 (85.0) | 0.803 |
Cardiovascular | 110 (36.7) | 17 (42.5) | 0.490 |
Pulmonary | 203 (67.7) | 24 (60.0) | 0.373 |
Gastrointestinal | 93 (31.0) | 19 (47.5) | 0.048 |
Neurologic | 63 (21.0) | 21 (52.5) | 0.000 |
Trigger | |||
Drug | 75 (25.0) | 20 (50.0) | 0.001 |
Contrast media | 48 (16.0) | 3 (7.5) | 0.236 |
Food | 106 (35.3) | 10 (25.0) | 0.218 |
Insect venom | 18 (6.0) | 2 (5.0) | 1.000 |
Contact | 4 (1.3) | 1 (2.5) | 0.467 |
Idiopathic | 47 (15.7) | 4 (10.0) | 0.480 |
Severe on severity Gradea | 48 (16.0) | 9 (22.5) | 0.365 |
Initial vital signs | |||
Systolic BP, mmHg | 129.3 ± 23.4 | 114.1 ± 24.7 | 0.000 |
Diastolic BP, mmHg | 81.1 ± 17.3 | 70.3 ± 27.7 | 0.020 |
Heart rate, beats/min | 90.9 ± 21.4 | 88.8 ± 23.2 | 0.562 |
Respiratory rate, breaths/min | 21.6 ± 3.6 | 22.9 ± 5.7 | 0.170 |
Oxygen saturation, % | 97.5 ± 2.6 | 96.3 ± 3.6 | 0.052 |
