Table 2.
Top 10 active countries and international research collaboration
| Rank | Country | Frequency (%) N = 2044 | Number of collaborating countries | SCP | MCP |
|---|---|---|---|---|---|
| 1st | United States | 735 (36.0) | 43 | 644 (87.6) | 91 (12.4) |
| 2nd | United Kingdom | 269 (13.2) | 28 | 222 (82.5) | 47 (17.5) |
| 3rd | Canada | 111 (5.4) | 20 | 88 (79.3) | 23 (20.7) |
| 4th | Australia | 84 (4.1) | 19 | 68 (81.0) | 16 (19.0) |
| 5th | Germany | 75 (3.7) | 13 | 60 (80.0) | 15 (20.0) |
| 6th | Netherlands | 53 (2.6) | 10 | 45 (84.9) | 8 (15.1) |
| 7th | Brazil | 43 (2.1) | 10 | 38 (88.4) | 5 (11.6) |
| 8th | Italy | 38 (1.9) | 9 | 31 (81.6) | 7 (18.4) |
| 9th | India | 37 (1.8) | 15 | 19 (51.4) | 18 (48.6) |
| 10th | France | 33 (1.6) | 7 | 25 (75.8) | 8 (24.2) |
| 1478 (72.3) | 1240 (83.9) | 238 (16.1) |
SCP single country collaboration = intra-country collaboration, MCP multiple country collaboration = international collaboration