Kuncewitch 2017.

Methods	Study design: randomised controlled trial Study grouping: parallel Ethics and informed consent: not reported Follow‐up period: not reported Sample size estimate: not reported ITT analysis: yes number randomised: 73 number analysed: 73 Funding: not reported Pre‐registration: not reported
Participants	Location: not reported Intervention group: n = 36control group: n = 37 Mean age (SD): not reported Inclusion criteria: high‐risk surgical oncology patients undergoing laparotomy Exclusion criteria: not stated
Interventions	Aim/s: to investigate the effects of NPWT on short‐ and long‐term wound outcomes in people undergoing pancreatectomy Group 1 (NPWT) intervention: NPWT Group 2 (control) intervention: standard surgical dressing Study date/s: 2012 to 2016
Outcomes	postoperative wound complications in the first 30 days incisional hernia rates rates of pancreatic fistula delayed gastric emptying Validity of measure/s: not described Time points: not stated
Notes	Only the abstract was available.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All outcomes	Low risk	Evidence for participants: not possible Comment: unlikely to affect outcomes Evidence for personnel: not possible Comment: unlikely to affect outcomes
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not stated
Incomplete outcome data (attrition bias) All outcomes	Low risk	73 participants were enrolled and analysed.
Selective reporting (reporting bias)	Low risk	Expected outcomes were reported in the abstract.
Other bias	Unclear risk	Abstract only