Visitors to the European Respiratory Review website in 2011–2012 and 2014–2015 by country
| Country | Total visits n | |
| 2011–2012 | 2014–2015 | |
| USA | 45 643 | 127 858 |
| UK | 19 066 | 42 163 |
| India | 9650 | 27 064 |
| Australia | 6695 | 17 091 |
| Canada | 5521 | 14 666 |
| Italy | 3793 | 9928 |
| Japan | 2715 | 8951 |
| Germany | 3285 | 8736 |
| China | 3610 | 8609 |
| Spain | 2616 | 7670 |
| France | 2313 | 7168 |
| Brazil | 2325 | 6847 |
| The Netherlands | 1635 | 5097 |
| Indonesia | 2309 | 4840 |
| Mexico | 1552 | 4737 |