AUDIT CRITERIA
		Pre-poster (n = 82)	Post-poster (n = 90)
All staff will cover their ears	Yes	36	43
	No	46	47
All staff will cover their nose and mouth		Pre-poster (n = 82)	Post-poster (n = 90)
	Yes	72	75
	No	10	15
All staff will cover all their head hair		Pre-poster (n = 82)	Post-poster (n = 90)
	Yes	24	34
	No	58	56
All staff will leave ear/nose piercings in		Pre-poster (n = 82)	Post-poster (n = 90)
	Yes	76	85
	No	6	5
All staff will cover ear/nose piercings/holes		Pre-poster (n = 82)	Post-poster (n = 90)
	Yes	56	68
	No	26	22
All staff will tuck their scrub shirt into their trousers		Pre-poster (n = 82)	Post-poster (n = 90)
	Yes	2	11
	No	80	79
Scrub staff will ensure the outer packaging of sterile gloves is not splashed with water during scrubbing-up		Pre-poster (n = 28)	Post-poster (n = 33)
	Yes	21	24
	No	7	9
Scrub staff will remove finger rings before scrubbing		Pre-poster (n = 34)	Post-poster (n = 37)
	Yes	27	28
	No	7	9
Scrub staff will wear a hood		Pre-poster (n = 34)	Post-poster (n = 37)
	Yes	20	20
	No	14	17
Scrub staff will tuck their hood into their scrub shirt		Pre-poster (n = 34)	Post-poster (n = 37)
	Yes	14	14
	No	20	23
Chlorhexidine lavage is used		Pre-poster (n = 10)	Post-poster (n = 10)
	Yes	10	10
	No	0	0
Antibiotic is given at least 10 min prior to inflation of tourniquet (in TKR)		Pre-poster (n = 6)	Post-poster (n = 7)
	Yes	6	7
	No	0	0