¹Experience was variably defined as >50 robotic surgeries (49); familiarity with the use of the robotic system for benign and other malignant pelvic conditions. (53)

²Learning curve was variably defined as implementation of the robotics program (45); the surgeon started performing robotic hysterectomies in 2005 (44); all robotic hysterectomies were performed by senior surgeons who had never performed the procedure laparoscopically. (65)

³Age difference was shown for Boggess 2008a (RB: 47.4, SD: 12.9 vs. OS: 41.9, SD: 11.2 years, p=0.029); for Bell 2008 (RB: 63.0, SD: 10.1 vs. OS: 72.3, SD: 12.5 years, p=0.0005); and for Maggioni 2009 (RB: 44.1, SD: 9.1 vs. OS: 49.8, SD: 14.1 years, p=0.035).

⁴Stage difference was shown for Boggess 2008, favouring IIB, IIIA/IIIB/IIIC and IVA/IVB tumours in OS (significance not given).

⁵There was no stage information in Bell 2008. There was no difference in uterine weight.