Sociodemographic characteristics of the study population (n = 1974)
| Characteristics | n | % |
|---|---|---|
| *Southern Europe = Greece, Italy, Portugal, Spain. | ||
| †Central Europe = Austria, Belgium, Denmark, France, Great Britain, Netherlands, Switzerland. | ||
| ‡Eastern Europe = Albania, Bosnia-Herzegovina, Bulgaria, Croatia, Hungary, Kosowo, Macedonia, Moldavia, Poland, Romania, Russia, Serbia, Ukraine, Yugoslavia. | ||
| Gender | ||
| Boys | 1008 | 51.1 |
| Girls | 966 | 48.9 |
| Age | ||
| 5 years | 417 | 21.1 |
| 6 years | 1557 | 78.9 |
| Nationality | ||
| German | 1522 | 77.1 |
| Other | 452 | 22.9 |
| Turkish | 146 | 32.3 |
| Southern Europe* | 33 | 7.3 |
| Central Europe† | 33 | 7.3 |
| Eastern Europe‡ | 99 | 21.9 |
| Other countries | 141 | 31.2 |