Certainty of the evidence | Effect size | Suggested statements for conclusions (replace X with intervention, choose ‘reduce’ or ‘increase’ depending on the direction of the effect, replace ‘outcome’ with name of outcome, include ‘when compared with Y’ when needed) |
---|---|---|
High | Large | X results in a large reduction/increase in outcome |
Moderate | X reduces/increases outcome | |
X results in a reduction/increase in outcome | ||
Small important effect | X reduces/increases outcome slightly X results in a slight reduction/increase in outcome | |
Unimportant or no effect | X results in little to no difference in outcome X does not reduce/increase outcome | |
Moderate | Large | X likely results in a large reduction/increase in outcome X probably results in a large reduction/increase in outcome |
Moderate | X likely reduces/increases outcome X probably reduces/increases outcome X likely results in a reduction/increase in outcome X probably results in a reduction/increase in outcome | |
Small important effect | X probably reduces/increases outcome slightly | |
X likely reduces/increases outcome slightly | ||
X probably results in a slight reduction/increase in outcome | ||
X likely results in a slight reduction/increase in | ||
Unimportant or no effect | X likely results in little to no difference in outcome X probably results in little to no difference in outcome X likely does not reduce/increase outcome X probably does not reduce/increase outcome | |
Low | Large | X may result in a large reduction/increase in outcome |
The evidence suggests X results in a large reduction/increase in outcome | ||
Moderate | X may reduce/increase outcome The evidence suggests X reduces/increases outcome X may result in a reduction/increase in outcome The evidence suggests X results in a reduction/increase in outcome | |
Small important effect | X may reduce/increase outcome slightly The evidence suggests X reduces/increases outcome slightly X may result in a slight reduction/increase in outcome The evidence suggests X results in a slight reduction/increase in outcome | |
Unimportant or no effect | X may result in little to no difference in outcome The evidence suggests that X results in little to no difference in outcome X may not reduce/increase outcome The evidence suggests that X does not reduce/increase outcome | |
Very low | Any effect | The evidence is very uncertain about the effect of X on outcome X may reduce/increase/have little to no effect on outcome but the evidence is very uncertain |