Study characteristics of original research articles studying the association between climate change and health, 2012-21
| Number of articles (% of sample*) | Annual increase† (%) | Articles with global south focus (%)‡ | |
| Total | 1014 (100.0) | 26 | 444 (43.8) |
| Journal impact factor: | |||
| 0.00-4.99 | 23 (2.3) | −7 | 8 (34.8) |
| 5.00-9.99 | 161 (15.9) | 23 | 67 (41.6) |
| >10.00 | 831 (81.8) | 28 | 369 (44.4) |
| Median number of authors (interquartile range) | 5 (3-7) | — | — |
| First author location (continent): | |||
| North America | 229 (22.6) | 20 | 40 (17.5) |
| South America | 24 (2.4) | 20 | 23 (95.8) |
| Europe | 276 (27.2) | 21 | 41 (14.9) |
| Asia | 319 (31.5) | 60 | 257 (80.6) |
| Africa | 42 (4.1) | 24 | 39 (92.9) |
| Oceania | 80 (7.9) | 6 | 20 (25.0) |
| First author location (region): | |||
| Global south§ | 349 (34.4) | 43 | 322 (92.3) |
| Global north | 653 (64.4) | 21 | 114 (17.5) |
| Funding source: | |||
| Government | 618 (60.9) | 30 | 262 (42.4) |
| Non-profit | 83 (8.2) | 40 | 31 (37.3) |
| For-profit | 10 (1) | — | 4 (40) |
| Academic | 225 (22.2) | 35 | 111 (49.3) |
| Not specified | 193 (19) | 9 | 86 (44.6) |
| None | 87 (8.6) | 42 | 33 (37.9) |
| Conflict of interest: | |||
| Oil and gas funding | 1 (0.1) | — | 0 (0) |
| Pharmaceutical funding | 9 (0.9) | — | 1 (11.1) |
| No funding | 623 (61.4) | 38 | 275 (44.1) |
| Not specified | 367 (36.2) | 8 | 161 (43.9) |
*Sample is 5% of total number of articles.
†Annual increase calculated if total greater than 20.
‡Denominator was number of articles in the sample.
§According to the United Nations' Finance Centre for South-South Cooperation.