OUTCOME: Clavien-Dindo grade >=III complications ANALYSIS: primary_all_designs STUDIES: 7 TREATMENTS: Conventional, Retzius, Ultra Original data: treat1 treat2 TE seTE Beyatli_2025 Retzius Ultra 0.0526 2.0053 Eden_2017 Conventional Retzius 0.7191 1.2458 Elliott_2023 Conventional Retzius -1.6642 1.5668 Karsiyakali_2022 Conventional Retzius -1.5609 0.8129 Lambert_2023 Conventional Retzius 1.6295 1.5557 Lim_2014 Conventional Retzius -0.0000 2.0099 Yilmaz_2023 Conventional Retzius -0.0000 0.5687 Number of treatment arms (by study): narms Beyatli_2025 2 Eden_2017 2 Elliott_2023 2 Karsiyakali_2022 2 Lambert_2023 2 Lim_2014 2 Yilmaz_2023 2 Results (random effects model): treat1 treat2 OR 95%-CI Beyatli_2025 Retzius Ultra 1.0541 [0.0183; 60.8552] Eden_2017 Conventional Retzius 0.7399 [0.2882; 1.8997] Elliott_2023 Conventional Retzius 0.7399 [0.2882; 1.8997] Karsiyakali_2022 Conventional Retzius 0.7399 [0.2882; 1.8997] Lambert_2023 Conventional Retzius 0.7399 [0.2882; 1.8997] Lim_2014 Conventional Retzius 0.7399 [0.2882; 1.8997] Yilmaz_2023 Conventional Retzius 0.7399 [0.2882; 1.8997] Number of studies: k = 7 Number of pairwise comparisons: m = 7 Number of observations: o = 1001 Number of treatments: n = 3 Number of designs: d = 2 Random effects model Treatment estimate (sm = 'OR', comparison: other treatments vs 'Conventional'): OR 95%-CI z p-value Conventional . . . . Retzius 1.3515 [0.5264; 3.4700] 0.63 0.5312 Ultra 1.2822 [0.0199; 82.4845] 0.12 0.9069 Quantifying heterogeneity / inconsistency: tau^2 = 0.2611; tau = 0.5110; I^2 = 11.9% [0.0%; 77.6%] Tests of heterogeneity (within designs) and inconsistency (between designs): Q d.f. p-value Total 5.67 5 0.3394 Within designs 5.67 5 0.3394 Between designs 0.00 0 -- Details of network meta-analysis methods: - Frequentist graph-theoretical approach - Restricted maximum-likelihood estimator for tau^2 - Calculation of I^2 based on Q --- P-SCORE RANKING --- P-score Conventional 0.6405 Ultra 0.4818 Retzius 0.3777 --- SUCRA RANKING --- SUCRA Conventional 0.6379 Ultra 0.4840 Retzius 0.3782 - based on 20000 simulations --- GLOBAL INCONSISTENCY: DESIGN-BY-TREATMENT --- Q statistics to assess homogeneity / consistency Q df p-value Total 5.67 5 0.3394 Within designs 5.67 5 0.3394 Between designs 0.00 0 -- Design-specific decomposition of within-designs Q statistic Design Q df p-value Conventional:Retzius 5.67 5 0.3394 Q statistic to assess consistency under the assumption of a full design-by-treatment interaction random effects model Q df p-value tau.within tau2.within Between designs 0.00 0 -- 0.3948 0.1559 --- LOCAL INCONSISTENCY: NODE SPLITTING/SIDE --- Separate indirect from direct evidence (SIDE) using back-calculation method Random effects model: comparison k prop nma direct indir. RoR z p-value Retzius:Conventional 6 1.00 1.3515 1.3515 . . . . Ultra:Conventional 0 0 1.2822 . 1.2822 . . . Retzius:Ultra 1 1.00 1.0541 1.0541 . . . . Legend: comparison - Treatment comparison k - Number of studies providing direct evidence prop - Direct evidence proportion nma - Estimated treatment effect (OR) in network meta-analysis direct - Estimated treatment effect (OR) derived from direct evidence indir. - Estimated treatment effect (OR) derived from indirect evidence RoR - Ratio of Ratios (direct versus indirect) z - z-value of test for disagreement (direct versus indirect) p-value - p-value of test for disagreement (direct versus indirect)