“…TLOS represents total LOS within 30 days of surgery, including readmission days. Twenty-four studies 17-23, 25-36, 38-42 reported PLOS, five studies 20,23,24,34,37 reported TLOS, and eight studies 24,26,28,29,32,36,40,43 reported TLOS. Compared with the control group, the PLOS of ERAS group was significantly shortened (SMD=-0.681, 95% CI: -0.844-0.517, P<0.01), TLOS was significantly shortened(SMD=-0.312, 95% CI: -0.551-0.073, P=0.011), and tLOS increased significantly(OR=4.899, 95% CI: 3.825-6.276, P<0.01).…”