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Bulletin of the National Research Centre
Fig. 5 | Bulletin of the National Research Centre

Fig. 5

From: Robotic versus open partial nephrectomy in the context of mild severity complications: a meta-analysis of comparative studies supplemented by meta-regression

Fig. 5

a: Forest plot under the fixed effects model for the subgroup analysis based on whether each study was performed by a single or multiple centers. A statistically significant reduction in the odds for mild complications in robotic compared to the open approach is demonstrated in both subgroups (for the single-center studies: petoOR = 0.54, CI95%: [0.43; 0.68], and for the multicenter studies: petoOR = 0.46, CI95%: [0.31; 0.69]). b: Μeta-regression analysis bubble plot and regression line, along with its 95% confidence interval, for the annual change in the overall estimate of the effect in log scale, referring to the single-center studies. This graph demonstrates a statistically significant difference between the two approaches that is progressively expanding after 2016. According to this finding, patients undergoing robotic partial nephrectomy are less prone to the development of mild postoperative complications (CD: I and II) compared to those receiving open surgery, with a relative benefit that is broadening over the years. Abbreviations: CD: Clavien–Dindo classification of postoperative complications

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