Tagliaferri 2020.

Study name	Combined mechanical and oral antibiotic bowel preparation versus oral antibiotics alone for the reduction of surgical site infection following elective colorectal resection: Interim analysis
Methods	Study type: ‐ Study design: randomised controlled trial
Participants	Condition or disease: Elective colon resection Inclusion criteria All patients over 18 years of age undergoing elective colon resections were included in the study Exclusion criteria ‐ Target sample size: ‐
Interventions	Treatment arms Intervention: Neomycin and Metronidazole for antibiotic preparation with polyethylene glycol. Control: Neomycin and Metronidazole for antibiotic preparation without polyethylene glycol.
Outcomes	Primary outcomes Superficial and deep SSI Anastomotic leak Secondary outcomes Clostridium difficile infection Ileus Cardiopulmonary complications Urinary tract infectionLength of stay Mortality
Starting date	Date of registration: ‐ Study Start Date: ‐ Estimated Primary Completion Date: ‐ Recruitment Status: ‐
Contact information	Contact person: A. R. Tagliaferri Affiliation: ‐ Country of origin: USA
Notes	Ethics approval: ‐ Source of funding: ‐

BMI: body mass index; IV: intravenous; ECOG: Eastern Cooperative Oncology Group; IBD: irritable bowel disease; MRI: magnetic resonance imaging; RCT: randomised controlled trial; SSI: surgical site infections