The incidence of DVT was reported in two studies involving 244 participants (Supplemental Figure
8) [
22,
25]. The values of overall incidence were 5.7% and 15.6% in the restrictive strategy group and the liberal strategy group, respectively (RR: 0.41, 95% CI: 0.18 to 0.91, I
2 = 0%). There was no significant difference between the two groups in acute myocardial infarction (Supplemental Figure
9) (RR: 1.02, 95% CI: 0.06 to 16.09), hypotension (Supplemental Figure
10) (RR: 1.05, 95% CI: 0.85 to 1.29, I
2 = 0%), pneumonia (Supplemental Figure
11) (RR: 0.93, 95% CI: 0.50 to 1.72, I
2 = 21%), pulmonary embolus (Supplemental Figure
12) (RR: 0.32, 95% CI: 0.06 to 1.68, I
2 = 0%), acute respiratory distress syndrome (ARDS) (Supplemental Figure
13) (RR: 1.05, 95% CI: 0.40 to 2.76, I
2 = 48%), and urinary tract infection (Supplemental Figure
14) (RR: 0.60, 95% CI: 0.08 to 4.65, I
2 = 51%).