Number of papers published in BMJ Open in 2020 by location, and proportion of these with PPI
| Location | n | % of total | Mean % PPI (95% CI) |
| UK | 591 | 19.7 | 44.5 (40.5 to 48.5) |
| Canada | 195 | 6.5 | 30.8 (24.3 to 37.3) |
| Australia/New Zealand | 269 | 9.0 | 21.9 (17.0 to 26.9) |
| France | 118 | 3.9 | 21.2 (13.8 to 28.6) |
| Netherlands | 120 | 4.0 | 20.8 (13.5 to 28.1) |
| Germany | 101 | 3.4 | 16.8 (9.5 to 24.2) |
| USA | 227 | 7.6 | 16.3 (11.5 to 21.1) |
| Europe (other) | 501 | 16.7 | 15.5 (12.4 to 18.7) |
| Central and South America | 59 | 2.0 | 11.3 (3.9 to 18.7) |
| Central and South Asia | 72 | 2.4 | 10.2 (2.4 to 18.0) |
| Africa and West Asia | 163 | 5.4 | 8.0 (3.8 to 12.1) |
| East and Southeast Asia | 232 | 7.7 | 6.4 (3.3 to 9.6) |
| China | 352 | 11.7 | 3.4 (1.5 to 5.3) |
| 3000 | 100.0 | 20.6 (19.1 to 22.0) |
Note that location here means each country with ≥100 papers and otherwise means region.
PPI, patient and public involvement.