Meta Analysis
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 7, 2012; 18(45): 6657-6668
Published online Dec 7, 2012. doi: 10.3748/wjg.v18.i45.6657
Table 3 Results of meta-analysis comparing laparoscopic vs open hepatectomy (only high-quality studies)
Outcome of interestNo. of studiesNo. of patientsOR/WMD95%CIP valueHeterogeneity P valueI2(%)
Operative outcomes
Operation time (min)63544.69-22.62, 32.000.740.000279
Intraoperative blood loss (mL)6333 -129.48-224.76, -34.210.0080.0167
Blood transfusions requirement74160.490.26, 0.910.020.890
Postoperative outcomes
Liver failure21160.150.02, 0.950.041.000
Cirrhotic decompensation/ascites74160.320.16, 0.610.0010.950
Bile leakage32050.550.10, 3.120.500.860
Postoperative bleeding52870.540.20, 1.450.220.830
Pulmonary complications63840.430.18, 1.040.060.460
Intra-abdominal abscess21010.210.01, 4.530.32--
Mortality84740.460.14, 1.510.200.640
Hospital stay6333 -3.19-4.09, -2.28 < 0.000010.910
Oncologic outcomes
Surgery margin positive rate52870.590.21, 1.620.310.650
Tumor recurrence74160.950.62, 1.460.810.930