Table 2.
Number of publications, mean 5-year impact factor and percentage of papers in the first quartile, by country, considering only primary studies with original data. Countries sorted by mean 5-year impact factor.
| Country | Articles whose corresponding author is from this country | Articles with sample from this country | Articles (%) from journals that are not in JCRa | Mean 5-year impact factor 2013 (Mean ± SD) | Articles (%) from journals in the first quartile in JCRb |
|---|---|---|---|---|---|
| France | 33 | 24 | 5 (15.2) | 5.29 ± 9.38 | 18 (54.5) |
| The Netherlands | 252 | 177 | 11 (4.4) | 3.60 ± 2.51 | 113 (44.8) |
| Germany | 231 | 166 | 15 (6.5) | 3.28 ± 2.93 | 97 (42) |
| United Kingdom | 436 | 384 | 75 (17.2) | 3.17 ± 2 | 165 (37.8) |
| Belgium | 58 | 46 | 7 (12.1) | 2.99 ± 1.61 | 23 (40) |
| Switzerland | 50 | 39 | 3 (6) | 2.96 ± 1.77 | 18 (36) |
| Austria | 23 | 14 | 1 (4.3) | 2.92 ± 1.72 | 9 (39.1) |
| Finland | 84 | 71 | 6 (7.1) | 2.89 ± 1.61 | 33 (39.3) |
| Norway | 89 | 77 | 7 (7.9) | 2.81 ± 1.52 | 32 (36) |
| Ireland | 41 | 38 | 12 (29.3) | 2.79 ± 1.68 | 14 (34.1) |
| Italy | 122 | 89 | 12 (9.8) | 2.69 ± 1.32 | 42 (34.4) |
| Denmark | 33 | 23 | 4 (12.1) | 2.65 ± 1.38 | 7 (21.2) |
| Spain | 111 | 95 | 9 (8.1) | 2.46 ± 1.31 | 32 (28.8) |
| Sweden | 125 | 90 | 21 (16.8) | 2.45 ± 1.28 | 37 (29.6) |
| Hungary | 13 | 10 | 2 (15.4) | 2.37 ± 1 | 4 (30.8) |
| Greece | 23 | 22 | 3 (13) | 2.36 ± 1.12 | 7 (30.4) |
| Poland | 24 | 23 | 7 (29.2) | 2.25 ± 2.12 | 4 (16.7) |
| Turkey | 47 | 33 | 4 (8.5) | 1.93 ± 1 | 15 (31.9) |
| Portugal | 25 | 22 | 4 (16) | 1.75 ± 1.18 | 5 (20) |
| Croatia | 14 | 12 | 3 (21.4) | 1.19 ± 1.02 | 1 (7.1) |
| Slovakia | 9 | 5 | 0 (0) | – | – |
| Iceland | 8 | 10 | 0 (0) | – | – |
| Serbia | 6 | 5 | 1 (16.7) | – | – |
| Lithuania | 5 | 4 | 2 (40) | – | – |
| Czech Republic | 4 | 5 | 0 (0) | – | – |
| Estonia | 4 | 4 | 0 (0) | – | – |
| Cyprus | 4 | 3 | 1 (25) | – | – |
| Slovenia | 4 | 3 | 0 (0) | – | – |
| Bulgaria | 3 | 2 | 2 (66.7) | – | – |
| Malta | 2 | 2 | 1 (50) | – | – |
| Georgia | 1 | 2 | 1 (100) | – | – |
| Russia | 1 | 2 | 1 (100) | – | – |
| Ukraine | 1 | 2 | 0 (0) | – | – |
| Belarus | 1 | 1 | 0 (0) | – | – |
| Bosnia-Herzegovina | 1 | 1 | 0 (0) | – | – |
| Romania | 1 | 1 | 1 (100) | – | – |
| Luxembourg | 1 | 0 | 1 (100) | – | – |
| Azerbaijan | 0 | 1 | – | – | – |
a
Percentage calculated over the number of articles whose corresponding author is from this country.
b
Percentage calculated over the number of articles from journals indexed in JCR whose corresponding author is from this country; Mean 5-year impact factor and percentage of articles in the first quartile in JCR were not reported for countries with less than 10 primary studies, according to the country of the corresponding author.