Database

2001-2016

Search Date

Keywords

No of Hits retrieved

No of Hits discarded

Google Scholar

February 2017

“surgical facemask in operating room in clean surgery”

32

29

BNI

“facemask in operating room” “surgical* AND facemask* AND operating room* OR operating theatre* AND surgical site infection* AND prevention”

26

26

MEDLINE

“surgical* AND facemask* AND operating room* OR operating theatre* AND surgical site infection* AND prevention”

1600

1599

CINAHL

“surgical facemask in operating room* OR operating theatre* AND surgical site infection* AND prevention” “surgical* AND facemask* AND operating room* OR operating theatre* AND surgical site infection* AND prevention” “use of surgical face mask* AND operating room* OR operating theatre* AND surgical site infection* OR surgical wound infection* OR surgical wound dehiscence*

410

401

Cochrane Database

“surgical* AND facemask in operating room* OR operating theatre* AND surgical site infection* AND prevention* AND review?*

38

34

Total

2106

2089