Socio-demographic statistics
| Brazil (n = 746) (%) | China (n = 363) (%) | Germany (n = 473) (%) | Italy (n = 1,648) (%) | Japan (n = 473) (%) | Korea (n = 447) (%) | Poland (n = 310) (%) | USA (n = 1,041) (%) | Total (n = 5,501) (%) | |
|---|---|---|---|---|---|---|---|---|---|
| Age | |||||||||
| 18-24 y | 20.6 | 73.6 | 41.6 | 26.3 | 77.0 | 41.4 | 29.4 | 9.7 | 32.6 |
| 25-34 y | 35.8 | 25.3 | 49.9 | 32.1 | 21.1 | 43.6 | 26.1 | 15.6 | 30.2 |
| 35-44 y | 24.3 | 1.1 | 7.0 | 12.9 | 1.9 | 5.1 | 21.9 | 20.0 | 13.4 |
| 45-54 y | 11.3 | 0.0 | 1.1 | 15.4 | 0.0 | 4.3 | 14.2 | 19.3 | 11.0 |
| 55-65 y | 4.8 | 0.0 | 0.2 | 10.1 | 0.0 | 2.9 | 7.7 | 15.9 | 7.4 |
| Over 65 y | 3.2 | 0.0 | 0.2 | 3.3 | 0.0 | 2.7 | 0.6 | 19.6 | 5.4 |
| Gender | |||||||||
| Male | 31.2 | 42.1 | 46.9 | 38.3 | 59.6 | 51.7 | 30.4 | 47.1 | 42.5 |
| Female | 68.8 | 57.9 | 53.1 | 61.7 | 40.4 | 48.3 | 69.6 | 52.9 | 57.5 |
| Education | |||||||||
| Primary education | 0.1 | 0.0 | 0.2 | 1.6 | 0.6 | 0.0 | 1.3 | 0.8 | 0.8 |
| Middle school | 12.2 | 2.8 | 1.3 | 5.5 | 0.6 | 0.0 | 1.9 | 0.6 | 3.9 |
| Secondary education | 53.9 | 15.4 | 23.0 | 41.3 | 34.0 | 55.3 | 23.2 | 29.1 | 36.9 |
| Bachelor degree | 20.0 | 74.9 | 52.4 | 22.5 | 63.0 | 32.4 | 20.0 | 48.5 | 37.2 |
| Master/PhD degree | 13.8 | 6.9 | 23.0 | 29.1 | 1.7 | 12.3 | 53.5 | 21.0 | 21.2 |
| Income * | |||||||||
| Low | 12.6 | 9.1 | 11.2 | 9.6 | 14.6 | 0.0 | 5.5 | 9.1 | 9.4 |
| Low-medium | 35.3 | 11.0 | 15.6 | 19.4 | 8.5 | 22.1 | 15.3 | 9.3 | 17.8 |
| Medium | 26.7 | 54.5 | 35.9 | 42.4 | 24.8 | 48.1 | 45.5 | 21.8 | 35.7 |
| Medium-high | 14.9 | 10.2 | 25.8 | 12.5 | 11.7 | 26.4 | 15.6 | 20.8 | 16.6 |
| High | 9.4 | 5.0 | 5.3 | 2.4 | 5.1 | 3.4 | 5.2 | 24.7 | 8.5 |
| N/D | 1.2 | 10.2 | 6.1 | 13.8 | 35.2 | 0.0 | 13.0 | 14.2 | 11.9 |
| Brazil ( | China ( | Germany ( | Italy ( | Japan ( | Korea ( | Poland ( | USA ( | Total ( | |
|---|---|---|---|---|---|---|---|---|---|
| 18-24 y | 20.6 | 73.6 | 41.6 | 26.3 | 77.0 | 41.4 | 29.4 | 9.7 | 32.6 |
| 25-34 y | 35.8 | 25.3 | 49.9 | 32.1 | 21.1 | 43.6 | 26.1 | 15.6 | 30.2 |
| 35-44 y | 24.3 | 1.1 | 7.0 | 12.9 | 1.9 | 5.1 | 21.9 | 20.0 | 13.4 |
| 45-54 y | 11.3 | 0.0 | 1.1 | 15.4 | 0.0 | 4.3 | 14.2 | 19.3 | 11.0 |
| 55-65 y | 4.8 | 0.0 | 0.2 | 10.1 | 0.0 | 2.9 | 7.7 | 15.9 | 7.4 |
| Over 65 y | 3.2 | 0.0 | 0.2 | 3.3 | 0.0 | 2.7 | 0.6 | 19.6 | 5.4 |
| Male | 31.2 | 42.1 | 46.9 | 38.3 | 59.6 | 51.7 | 30.4 | 47.1 | 42.5 |
| Female | 68.8 | 57.9 | 53.1 | 61.7 | 40.4 | 48.3 | 69.6 | 52.9 | 57.5 |
| Primary education | 0.1 | 0.0 | 0.2 | 1.6 | 0.6 | 0.0 | 1.3 | 0.8 | 0.8 |
| Middle school | 12.2 | 2.8 | 1.3 | 5.5 | 0.6 | 0.0 | 1.9 | 0.6 | 3.9 |
| Secondary education | 53.9 | 15.4 | 23.0 | 41.3 | 34.0 | 55.3 | 23.2 | 29.1 | 36.9 |
| Bachelor degree | 20.0 | 74.9 | 52.4 | 22.5 | 63.0 | 32.4 | 20.0 | 48.5 | 37.2 |
| Master/PhD degree | 13.8 | 6.9 | 23.0 | 29.1 | 1.7 | 12.3 | 53.5 | 21.0 | 21.2 |
| Low | 12.6 | 9.1 | 11.2 | 9.6 | 14.6 | 0.0 | 5.5 | 9.1 | 9.4 |
| Low-medium | 35.3 | 11.0 | 15.6 | 19.4 | 8.5 | 22.1 | 15.3 | 9.3 | 17.8 |
| Medium | 26.7 | 54.5 | 35.9 | 42.4 | 24.8 | 48.1 | 45.5 | 21.8 | 35.7 |
| Medium-high | 14.9 | 10.2 | 25.8 | 12.5 | 11.7 | 26.4 | 15.6 | 20.8 | 16.6 |
| High | 9.4 | 5.0 | 5.3 | 2.4 | 5.1 | 3.4 | 5.2 | 24.7 | 8.5 |
| N/D | 1.2 | 10.2 | 6.1 | 13.8 | 35.2 | 0.0 | 13.0 | 14.2 | 11.9 |
Note(s): * A total of 10 missing values (Italy, n = 1,642; Poland, n = 308; Japan, n = 471)
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