Table 4.

Geographical locations of collaborators and participants involved in core outcome set (COS) development

	Collaborators n (%)	Participants n (%)
North America, Europe	78 (34)	62 (27)
North America	53 (23)	50 (22)
Europe	49 (22)	42 (19)
North America, Europe, Australasia	13 (6)	15 (7)
North America, Europe, Asia	6 (3)	12 (5)
North America, Europe, Australasia, Asia	6 (3)	10 (4)
North America, Europe, Australasia, South America, Asia	4 (2)	10 (4)
Australasia	3 (1)	2 (1)
North America, Australasia	3 (1)	2 (1)
Europe, Australasia	3 (1)	1 (<1)
North America, Europe, South America, Asia	2 (1)	3 (1)
North America, Europe, Australasia, South America	2 (1)	1 (<1)
North America, Europe, Australasia, Africa	1 (<1)	3 (1)
North America, Europe, South America	1 (<1)	3 (1)
North America, Europe, Africa	1 (<1)	1 (<1)
North America, Europe, South America, Africa	1 (<1)	1 (<1)
Asia	1 (<1)
North America, Europe, Australasia, South America, Asia, Africa		4 (2)
North America, Europe, Australasia, South America, Africa		2 (1)
North America, South America, Asia, Africa		1 (<1)
North America, Europe, Australasia, Asia, Africa		1 (<1)
North America, Europe, South America, Asia, Africa		1 (<1)