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Table 5 Results of sensitivity analysis

From: Comparison of efficacy of robotic surgery, laparoscopy, and laparotomy in the treatment of ovarian cancer: a meta-analysis

Variable Group Effect model K WMD/OR [95% CI] Z P
Estimated blood loss R vs. L Fixed 5 − 39.9247 [− 78.7622; − 1.0871] 2.01 0.0439
R vs. L Random 5 − 55.0871 [− 139.0087; 28.8345] 1.29 0.1983
R vs. O Fixed 6 − 394.2279 [− 456.4271; − 332.0286] 12.42 < 0.0001
R vs. O Random 6 − 521.7027 [− 809.7816; − 233.6238] 3.55 0.0004
Length of hospital stay R vs. L Fixed 5 − 0.7770 [− 1.7023; 0.1484] 1.65 0.0998
R vs. L Random 5 − 1.4296 [− 3.5326; 0.6734] 1.33 0.1827
R vs. O Fixed 6 − 5.2225 [− 6.1485; − 4.2965] 11.05 < 0.0001
R vs. O Random 6 − 5.1505 [− 6.4793; − 3.8216] 7.60 < 0.0001
Operating time R vs. L Fixed 5 − 7.6177 [− 31.2545; 16.0192] 0.63 0.5276
R vs. L Random 5 − 0.8561 [− 46.3735; 44.6612] 0.04 0.9706
R vs. O Fixed 5 24.4862 [11.5380; 37.4344] 3.71 0.0002
R vs. O Random 5 9.8527 [− 57.0904; 76.7958] 0.29 0.7730
Postoperative complication R vs. L Fixed 6 1.4541 [0.6502; 3.2516] 0.91 0.3619
R vs. L Random 6 1.3484 [0.5235; 3.4731] 0.62 0.5357
R vs. O Fixed 6 0.4710 [0.2537; 0.8747] 2.38 0.0171
R vs. O Random 6 0.4878 [0.2600; 0.9154] 2.24 0.0254
Pelvic nodes R vs. L Fixed 3 − 0.5664 [− 3.1615; 2.0288] 0.43 0.6688
R vs. L Random 3 − 0.2074 [− 3.5497; 3.1349] 0.12 0.9032
R vs. O Fixed 4 0.0048 [−1.9418; 1.9514] <0.01 0.9962
R vs. O Random 4 0.0640 [− 2.5658; 2.6937] 0.05 0.9620
Postoperative recurrence R vs. L Fixed 2 0.2387 [0.0445; 1.2792] 1.67 0.0944
R vs. L Random 2 0.2463 [0.0326; 1.8617] 1.36 0.1745
R vs. O Fixed 2 0.8506 [0.3356; 2.1562] 0.34 0.7332
R vs. O Randomed 2 0.7633 [0.1665; 3.4995] 0.35 0.7281
Overall survival rate R vs. L Fixed 2 2.2000 [0.0842;5 7.4835] 0.47 0.6360
R vs. L Random 2 2.2000 [0.0842; 57.4835] 0.47 0.6360
R vs. O Fixed 2 6.4355 [1.6722; 24.7678] 2.71 0.0070
R vs. O Randomed 2 6.6854 [1.8172; 24.5959] 2.86 0.0040
Disease-free survival rate R vs. L Fixed 2 1.6909 [0.2572; 11.1175] 0.55 0.5850
R vs. L Randomed 2 1.7085 [0.2641; 11.0547] 0.56 0.5740
  1. K the number of articles included, R robot, L laparoscopic, O laparotomy, WMD weighted mean difference, OR odds ratio