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. 2019 Jan 14;191(2):E40–E46. doi: 10.1503/cmaj.180870

Table 3:

General grading guidelines from the Common Terminology Criteria for Adverse Events*12

CTCAE grade Description
1 Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated.
2 Moderate; minimal, local or noninvasive intervention indicated; limiting age appropriate instrumental activity of daily living.
3 Severe or medically significant but not immediately life-threatening; hospitalization indicated; disabling; limiting self care.
4 Life-threatening consequences; urgent intervention indicated.
5 Death related to adverse event.

Note: CTCAE = Common Terminology Criteria for Adverse Events.

*

CTCAE provides general grading guidelines as described within this table. For each specific organ affected, the CTCAE also provides descriptive organ-specific grading.12