Data are expressed as either median (interquartile range) or numbers (percentage).

^a Age-adjusted comorbidity index described by Charlson et al. ²⁸

^b In patients presenting a drop in postoperative hematocrit, calculated as the difference between postoperative (within 48h post-surgery) and preoperative values. Six cases were excluded because of a gain in hematocrit values (corresponding to 6 transfusions).

^c Surgical complications were classified using two corresponding classification systems: the ClassIntra for intraoperative adverse events ²⁶, and the Dindo-Clavien²⁷ for postoperative complications.

^d Including any of the following: laparotomy, extraperitoneal to transperitoneal, robotic-assisted to conventional

^e The main outcome measure is defined in the text and table S1.

^* The difference between the transperitoneal and extraperitoneal groups was significant (p =0.01), due to laparotomy conversions (0 vs. 6) and conversions from extraperitoneal to transperitoneal (6 cases).