Fig. 2From: Liberal or conservative oxygen therapy for ventilated patients in the ICU: a meta-analysis of randomized controlled trialsThe forest plot of mortality between LOT and COT a The longest follow-up time. b Within 90-days. c In 90-days. d In 180-days. e According to the studies published before 2020. f According to the studies published after 2020 between LOT and COT. LOT liberal oxygen therapy, COT conservative oxygen therapy, RR relative riskBack to article page