Naver 2000.

Methods	Surgical team were randomised to one of two groups using a sealed envelope. Details of method of randomisation not given. Perforation test ‐ gloves were filled with water to detect perforations
Participants	Surgeons, assistants and scrub nurses. Gastrointestinal surgery. 612 single gloves and 520 double outer gloves were collected.
Interventions	Single versus perforation indicator system.
Outcomes	Number of perforations. Proportion of total number of perforations detected by glove wearer during surgery. Blood contamination on hands
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Low risk	A ‐ Adequate