Perri 2014.

Methods	Retrospective review
Participants	68 procedures on 62 patients with gynaecological malignancies between October 2004 and January 2013 at a single centre
Interventions	68 surgical procedures: colostomy 18, ileostomy 27, resection/bypass and anastomosis 13, colonic stent 1, gastrostomy 5, gastroenterostomy 4
Outcomes	Deaths prior to discharge: n = 18, within 3 to 81 days (median 25 days) Postoperative survival: median 106 days (range 3 to 1342) 30‐day mortality = 14.7% 60‐day mortality = 29.4% Postoperative oral intake = 65% Postoperative chemotherapy (additional) = 53% Re‐obstruction: 10/62 median 4.3 months (1 to 36 months) Severe complications: sepsis 5; leak from anastomosis 6; necrotising fascitis 2
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Patients allocated to surgery by clinician/patient choice and followed up
Allocation concealment (selection bias)	High risk	Patients allocated to surgery by clinician/patient choice and followed up
Blinding (performance bias and detection bias) All outcomes	High risk	Patients allocated to surgery by clinician/patient choice and followed up
Blinding of participants and personnel (performance bias) All outcomes	High risk	Patients allocated to surgery by clinician/patient choice and followed up
Blinding of outcome assessment (detection bias) All outcomes	High risk	Patients allocated to surgery by clinician/patient choice and followed up
Selective reporting (reporting bias)	Unclear risk	Not clear if resolution of bowel obstruction is synonymous with relief of symptoms Not reported by procedure