From: Prone positioning in acute respiratory distress syndrome during venovenous extracorporeal membrane oxygenation
Data type
No. of studies
RR (95% confidence interval)
P value
P value for interaction
Non-PSM
4
0.98 [0.54–1.79]
0.95
0.354
PSM
3
1.33 [1.07–1.64]
0.0086