From: Predictors of extubation failure in newborns: a systematic review and meta-analysis
Definite |
All low and moderate risk of bias studies positive (at least three studies) |
Majority (more than 50%) low and moderate risk of bias studies positive (at least five studies) |
Likely |
All low and moderate risk of bias studies positive (two studies) |
Majority (more than 50%) low and moderate risk of bias studies positive (2–4 studies) |
Unclear |
All low and moderate risk of bias studies positive (one study) |
Low and moderate risk of bias studies show mixed or conflicting results |
A majority (more than 50%) of studies negative but at least one low or moderate risk of bias study positive |
Not a risk factor |
No low or moderate risk of bias studies positive |