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Table 3.3Overall quality of outcome evidence in GRADE

LevelDescription
HighFurther research is very unlikely to change our confidence in the estimate of effect.
ModerateFurther research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
LowFurther research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very lowAny estimate of effect is very uncertain.

From: 3, Methods

Cover of Stable Angina
Stable Angina: Methods, Evidence & Guidance [Internet].
NICE Clinical Guidelines, No. 126.
National Clinical Guidelines Centre (UK).
Copyright © 2011, National Clinical Guidelines Centre.

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