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Table 2 Risk of bias in included studies

From: Proportional modes versus pressure support ventilation: a systematic review and meta-analysis

Study/year Sequence generation Allocation concealment Blinding of participants and personnel Blinding of outcome assessors Incomplete outcome data Selective outcome reporting Other source of bias
Colombo/2008 Low Unclear High Unclear Low Unclear Unclear
Xirouchaki/2008 Low Unclear High Unclear Low Low Low
Spahija/2010 Unclear Unclear High Unclear Unclear Unclear Unclear
Patroniti/2012 Unclear Unclear High Unclear Low Unclear Unclear
Elganady/2014 Low Low High Unclear Unclear Low Low
Doorduin/2015 Unclear Unclear High Unclear Unclear Low Unclear
Schmidt/2015 Low Unclear High Unclear Unclear Low Unclear
Bosma/2016 Low Unclear High Unclear Low Unclear Low
Carteaux/2016 Low Unclear High High Low Low Unclear
Demoule/2016 Low Low High Low High Low Low
Di mussi/2016 Unclear Unclear High Unclear High High Unclear
Kuo/2016 Unclear Unclear High Unclear Low Low Unclear
Costa/2017 Low Low High Unclear Low Low Unclear
Ferreira/2017 Low Low High Low Low Low Unclear
Botha/2018 Low Low High High Low Low High