Table 2 Distribution of studies by income group
Income group | Country/Territory | Number of studies |
|---|---|---|
High income | Australia | 2 |
Austria | 1 | |
Belgium | 2 | |
Canada | 1 | |
Czech Republic | 1 | |
France | 8 | |
Germany | 15 | |
Greece | 2 | |
Italy | 5 | |
Japan | 1 | |
Korea | 1 | |
Netherlands | 3 | |
Poland | 1 | |
Portugal | 1 | |
Spain | 2 | |
Taiwan | 1 | |
United Kingdom | 7 | |
United States | 28 | |
Upper middle income | South Africa | 1 |
Thailand | 1 | |
Turkey | 1 | |
Lower middle income | India | 3 |
Nepal | 1 | |
Low income | – | – |