Table 1.

Retained surgical items incidence in various situations. RSI = Retained surgical item.

Characteristics		Unmatched dataset (Abdominal and pelvic procedures)
		No of RSI cases in 100,000 procedures	p value
Procedure urgency	Elective	16	<0.001
	Non-elective	11
Hospital location	Urban	13	0.214
	Rural	15
Teaching hospital	Yes	15	<0.001
	No	12
Hospital bedsize	Small	13	0.611
	Medium	13
	Large	12
Hospital ownership	Public	15	0.184
	Private (none-for-profit)	13
	Private	13
Morbid obesity	Yes	23	<0.001
	No	13