While typesetting the article first paragraph of methods section were incorrectly published.

The methods sections previously reads

A multicenter, prospective cohort study was performed selecting consecutive patients diagnosed with mid-low rectal cancers located below the peritoneal reflection and with a BMI > 30 kg/m2, who underwent MI elective rectal cancer surgeries at four tertiary centers in Spain (1. XXX, 2. YYY, 3. ZZZ, 4. WWW).

A multicenter, prospective cohort study was performed selecting consecutive patients diagnosed with mid-low rectal cancers located below the peritoneal reflection and with a BMI > 30 kg/m2, who underwent MI elective rectal cancer surgeries at four tertiary centers in Spain (1. University Hospital Gregorio Marañon, Madrid, 2. University Clinic of Navarre, Madrid and Pamplona, 3. University Hospital Rio Hortega, Valladolid, 4. University Hospital of Leon, Leon).

The original article has been corrected.