Table 2.
AARs before and after the policy change
| AARs | Incidence | |||
|---|---|---|---|---|
| Severity | Types | Before policy change (n = 43,927) | After policy change (n = 14,676) | |
| Overall | 705 (1.60%) | 205 (1.40%) | ||
| Allergy-like/hypersensitivity | Mild | Urticaria/itching/erythema | 313 (0.71%) | 103 (0.70%) |
| Moderate | Bronchospasm | 0 | 0 | |
| Facial/laryngeal edema | 0 | 1 (0.01%) | ||
| Severe | Hypotensive shock | 25 (0.06%) | 7 (0.05%) | |
| Respiratory arrest | 0 | 0 | ||
| Cardiac arrest | 0 | 0 | ||
| Chemotoxic | Mild | Nausea | 137 (0.31%) | 26 (0.18%)* |
| Vomiting | 55 (0.12%) | 23 (0.16%) | ||
| Anxiety | 175 (0.40%) | 45 (0.31%) | ||
| Vasovagal reaction which resolve spontaneously | 0 | 0 | ||
| Moderate | Vasovagal reaction | 0 | 0 | |
| Severe | Arrhythmia | 0 | 0 | |
| Convulsion | 0 | 0 | ||
This classification was modified from ESUR guidelines on contrast media ver. 10.0 [5]
*p = 0.006