Table 4.

A breakdown of research contribution based on the country of author affiliation institute.

Author affiliation and country (ordered alphabetically)		Number of authors affiliated to institutions in that country, n (%)
High-income countries
	Australia	61 (23.7)
	Canada	26 (10.1)
	France	5 (1.9)
	Germany	7 (2.7)
	Hungary	1 (0.4)
	Italy	2 (0.8)
	Japan	1 (0.4)
	Korea, Republic	13 (5.1)
	Netherlands	1 (0.4)
	New Zealand	10 (3.9)
	Poland	1 (0.4)
	Spain	28 (10.9)
	Singapore	16 (6.2)
	Sweden	1 (0.4)
	United Kingdom	33 (12.8)
	United States	51 (19.8)
Total affiliations from high-income countries		257 (100)
Middle-income countries
	China	17 (48.6)
	India	7 (20)
	Iran, Islamic Republic	9 (25.7)
	Macedonia	1 (2.9)
	Serbia	1 (2.9)
Total affiliations from middle-income countries		35 (100)
Low-income countries
	Brunei	3 (42.9)
	Malawi	4 (57)
Total affiliations from low-income countries		7 (100)