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Seriousness classification of medication errors (MEs), adverse drug events (ADEs), and potential ADEs
| Classification | ME | ADEs | Potential ADEs |
|---|---|---|---|
| (n = 492) | (n = 8) | (n = 113) | |
| Category A | 371 | 0 | 0 |
| Category B | 109 | 0 | 109 |
| Category C | 2 | 0 | 2 |
| Category D | 2 | 0 | 2 |
| Category E | 0 | 0 | 0 |
| Category F | 0 | 0 | 0 |
| Category G | 1 | 1 | 0 |
| Category H | 5 | 5 | 0 |
| Category I | 2 | 2 | 0 |
Seriousness of ADEs was classified on categories according to WHO classification [22]
