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).