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Table 2 Quality assessment of the included studies

From: Airway pressure release ventilation during acute hypoxemic respiratory failure: a systematic review and meta-analysis of randomized controlled trials

 

Random-sequence generation

Allocation concealment

Blinding of participants and personnel

Blinding of outcome assessment

Incomplete outcome data

Selective reporting

Other bias

Putensen et al. [13]

?

?

?

+

?

Varpula et al. [10]

?

+

?

+

?

?

Li et al. [12]

?

?

?

+

?

?

Zhou et al. [11]

+

+

?

+

+

+

Hirshberg et al. [16]

+

+

?

+

+

+

  1. +, low risk of bias; –, high risk of bias; ?, unclear risk