highly significantp<0.001
The near-identical medians (50 ml each) yet highly significant difference in the >100 ml rate (2.5% vs. 19.6%, p<0.001) reveals the true pattern: robotic surgery essentially eliminates major haemorrhagic events, while laparoscopic surgery carries a persistent risk of larger bleeding episodes—most likely during technically demanding peripancreatic and splenic hilar dissection, consistent with the intraoperative adverse event patterns identified in a pooled analysis of two Chinese laparoscopic RCTs ( 24 ).