Table 4. Production of articles related to eye diseases, by continent (2010–2014).
(A) Based on the total number of publications, (B) Based on the 5-Y IF population index (cumulative 5-Y IF per million inhabitants), (C) Based on the 5-Y IF GDP index (cumulative 5-Y IF per 1 billion US dollars of GDP)
| A | B | C | |||||
|---|---|---|---|---|---|---|---|
| Continent | No. of articles (%) | Cumulative 5-Y IF (sum of 5-Y IF) | m5-Y IF (mean 5-Y IF) | Continent | 5-Y IF population index | Continent | 5-Y IF GDP index |
| Europe | 19,716 (33.38) | 52118.511 | 2.64 | North America | 166.2 | Oceania | 3.69 |
| Asia | 18,140 (30.71) | 39656.153 | 2.19 | Oceania | 158.41 | North America | 3.28 |
| North America | 16,643 (28.18) | 57741.761 | 3.47 | Europe | 70.57 | Europe | 2.49 |
| Oceania | 1,919 (3.25) | 5877.951 | 3.06 | Asia | 9.47 | Asia | 1.74 |
| Latin America and the Caribbean | 1,560 (2.64) | 2740.639 | 1.76 | Latin America and the Caribbean | 4.52 | Africa | 0.73 |
| Africa | 1,082 (1.83) | 1578.21 | 1.46 | Africa | 1.47 | Latin America and the Caribbean | 0.47 |
| World | 59,060 (100) | 159713.225 | 2.70 | World | 22.8 | World | 2.23 |
Note:
GDP, gross domestic product; 5-Y IF, five-year impact factor; m5-Y IF, mean five-year impact factor.