Table 1.
Countries who participated in the survey
| High-income | Upper middle-income | Lower middle-income | Low-income |
|---|---|---|---|
| Argentina | Brazil | Burma | Cambodia |
| Australia | Bulgaria | Egypt | Mali |
| Austria | China | Georgia | Uganda |
| Bahrain | Macedonia | India | Zimbabwe |
| Canada | Malaysia | Indonesia | |
| Germany | Peru | Kenya | |
| Greece | Serbia | Nigeria | |
| Hong Kong | South Africa | Pakistan | |
| Italy | Turkey | Papua New Guinea | |
| Japan | Vietnam | ||
| Korea, South | |||
| Latvia | |||
| Netherlands | |||
| Russia | |||
| Slovenia | |||
| Spain | |||
| Sweden | |||
| Switzerland | |||
| United Kingdom | |||
| United States of America | |||
| Total: 20 | Total: 9 | Total: 10 | Total: 4 |
The majority (20) were high income countries while 23 were LMIC. Countries were categorized according to World Bank Country Groups [21]