Table 5.
COVID-19 history of participants across countries with more than 200 participants.
| Residing Country | COVID_No (%) | COVID_Yes (%) | COVID_Unsure (%) | Cumulative Cases (per 1 M) |
|---|---|---|---|---|
| All Countries | 63.0 | 21.7 | 15.3 | – |
| Russian Federation | 36.4 | 37.2 | 26.3 | 45599.4 |
| Japan | 94.6 | 2.5 | 2.9 | 10380.1 |
| Finland | 81.8 | 6.0 | 12.1 | 22090.9 |
| Switzerland | 66.9 | 13.3 | 19.7 | 86370.4 |
| Spain | 71.8 | 11.5 | 16.7 | 102052.2 |
| Colombia | 48.9 | 34.5 | 16.6 | 95376.1 |
| Portugal | 69.6 | 13.6 | 16.7 | 100258.4 |
| Brazil | 65.6 | 26.3 | 7.8 | 96148.8 |
| Honduras | 50.1 | 28.7 | 21.2 | 32478.4 |
| Ireland | 68.8 | 18.5 | 12.7 | 67654.7 |
| Norway | 81.6 | 9.8 | 8.5 | 27189.6 |
| Czech Republic | 45.5 | 36.4 | 18.1 | 156417.9 |
| Slovakia | 61.3 | 26.8 | 11.8 | 142854.0 |
| Italy | 64.2 | 20.3 | 15.5 | 74288.6 |
| Bulgaria | 40.1 | 34.4 | 25.1 | 63986.8 |
| Ecuador | 64.6 | 21.6 | 13.7 | 27877.1 |
| Uruguay | 78.8 | 11.8 | 9.4 | 110208.7 |
| Guatemala | 71.4 | 18.5 | 10.1 | 24068.8 |
| Costa Rica | 56.3 | 21.5 | 22.2 | 85744.8 |
| Kyrgyzstan | 20.1 | 59.8 | 20.1 | 26238.8 |
| Ukraine | 37.3 | 46.4 | 16.3 | 54481.8 |
| Estonia | 71.1 | 15.0 | 13.8 | 104745.1 |
| Malaysia | 82.7 | 1.3 | 16.0 | 47445.8 |
| Taiwan | 88.7 | 1.8 | 9.5 | 667.6 |
| Turkey | 63.5 | 19.0 | 17.5 | 73088.7 |
Participants were asked if they thought they had ever had COVID-19. Abbreviations: COVID_No = percentage of participants who did not think they had been infected with COVID-19. COVID_Yes = percentage of participants who thought they had been infected with COVID-19. COVID_Unsure = percentage of participants who did not know if they had been infected with COVID-19. Note that data was missing for 0.1% of respondents. Cumulative Cases = total cumulative COVID-19 cases on August 22, 2021 (last official date of data collection) per 1 M habitants, data originally sourced from COVID-19 Data Repository by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University (https://github.com/CSSEGISandData/COVID-19)44 and obtained from OldWorldinData.org Under Creative Commons Attribution CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)45.