Table 1.
Income group(s) of countries studied | |||||||
---|---|---|---|---|---|---|---|
Region(s) studied | Low | Lower‐middle | Upper‐middle | High | Multiplea | Total | % of total |
East Asia and Pacific | 22 | 43 | 165 | 229 | 25 | 405 | 14% |
Europe and Central Asia | 11 | 16 | 44 | 1210 | 20 | 1243 | 44% |
Latin America and Caribbean | 13 | 18 | 116 | 16 | 19 | 129 | 5% |
Middle East and North Africa | 14 | 20 | 43 | 27 | 20 | 62 | 2% |
North America | 1 | 1 | 1 | 960 | 1 | 960 | 34% |
South Asia | 27 | 49 | 20 | 15 | 25 | 56 | 2% |
Sub‐Saharan Africa | 92 | 64 | 78 | 22 | 46 | 158 | 6% |
Multiplea | 27 | 35 | 31 | 85 | 38 | 102 | 4% |
Total | 104 | 121 | 391 | 2350 | 63 | 2844 | 100% |
% of total | 4% | 4% | 14% | 83% | 2% | 100% |
Articles studying at least two countries of differing income levels or regions are categorised as ‘Multiple’.