Takesue 2000.

Study characteristics
Methods	Study design: Parallel‐group randomised trials Duration of trial: April 1997 to November 1997 Duration of follow‐up: Quote: "until discharged from the hospital" Country of origin: Japan
Participants	Baseline characteristics Number randomised: 100 participants Number analysed: 83 participants Intervention: MBP+oAB Number of participants [n]: 38 Age [years; median (range)]: 65 (29‐85) Gender [male/female; n]: 25/13 Control: MBP Number of participants [n]: 45 Age [years, median (range)]: 68 (34‐81) Gender [male/female; n]: 29/16 Inclusion criteria  Quote: "Elective colorectal surgery" Exclusion criteria Quote:"MBP not possible; antibiotics within least 15 days; emergency colonic obstruction" Baseline imbalances None
Interventions	Comparison Intervention: MBP+oAB Control: MBP MBP Agent(s): PEG lavage Dose per administration: ‐ Time(s) of intake: 10 AM to 2 PM on the day before surgery Route: oral Concomitant medications: ‐ oAB Agent(s): kanamycin and metronidazole Dose per administration: 500 mg each Time(s) of intake: at 2 PM, 3 PM and 11 PM (when surgery was scheduled for 9 AM) Route: oral Concomitant medications: ‐ Perioperative intravenous antibiotic prophylaxis Agent(s): cefmetazole Dose per administration: 1 g Time(s) of intake:Quote:  "after induction of anesthesia; and three times daylie for 3 consecutive days after the operation" Adherence to regimen: 17 excluded after randomisation (12 in MBP+oAB group an 5 in oAB group)
Outcomes	Outcomes sought in review and reported in trial SSI Anastomotic leakage Outcomes sought but not reported in trial Mortality Incidence of postoperative ileus Postoperative complications (mild D/C I + II or severe D/C III+IV) Length of hospital stay Side effects of Intervention(s) Outcomes reported in trial but not used in review Anastomotic bleeding Abdominal/pelvic collection Urinary tract infection Pulmonary complications Thrombophlebitis Relaparotomy
Notes	Source of funding: ‐ Conflicts of interest: ‐ Ethics approval: ‐ Informed consent: All patients gave informed consent Clinical trials registration: ‐ Sample size calculation: ‐