Grade | Description |
---|---|
Grade 1 (mild) | Asymptomatic or mild symptoms, clinical or diagnostic observations only, intervention not indicated |
Grade 2 (moderate) | Minimal, local, or noninvasive intervention indicated, limiting age-appropriate instrumental ADL |
Grade 3 (severe) | Medically significant but not immediately life-threatening, hospitalization or prolongation of hospitalization indicated, disabling, limiting self-care ADL |
Grade 4 (life-threatening) | Life-threatening consequences, urgent intervention indicated |
Grade 5 (death) | Death related to AE |