Randomized Controlled Trial
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Sep 27, 2022; 14(9): 1037-1048
Published online Sep 27, 2022. doi: 10.4240/wjgs.v14.i9.1037
Table 2 Results for primary outcome and secondary outcomes

Control group (n = 65)
CO-G group (n = 65)
P value
Primary outcomes
ALI, n (%)29 (44.6)18 (27.7)0.045
Others
Pneumonia, n (%)12 (18.5)8 (12.3)0.634
Atelectasis, n (%)18 (27.7)12 (18.5)0.687
ARDS, n (%)6 (9.2)4 (6.2)0.742
Refractory heart failure, n (%)3 (4.6)1 (1.5)0.612
Readmission to ICU for pulmonary complications, n (%)3 (4.6)2 (3.1)1.000
ICU stay, d2 (2, 3)2 (2, 3)0.200
Hospital stay, d28 (22, 39)27 (20, 37)0.450
In-hospital mortality, n (%)2 (3.1)00.476