Table 1 Sample characteristics
Descriptive summary | ||
|---|---|---|
Variable (n) | Mean (standard error) / % | |
Gender (15,023) | female | 50.2% |
male | 49.8% | |
Age (15,023) | Â | 8.8 (0.04) |
SES (14,790) | low | 20.1% |
medium | 59.9% | |
high | 20.0% | |
Parents’ marital status (14,677) | single | 12.6% |
married | 76.2% | |
other | 11.2% | |
Household size (14,659) | Â | 4.1 (0.02) |
Migration background (14,851) | none | 71.2% |
one-sided | 11.8% | |
two-sided | 17.0% | |
Area of residence (15,023) | western Germany | 81.9% |
eastern Germany | 18.1% | |
Physical activity: active days per week (12,981) | Â | 4.5 (0.03) |
Fast-food items per week (12,909) | Â | 1.8 (0.02) |
Ever consumed alcohol (11 years or older) (6,141) | yes | 51.0% |
no | 49.0% | |
Ever smoked (11 years or older) (5,747) | yes | 6.6% |
no | 93.4% | |
Parents’ smoking status (14,154) | both | 13.1% |
one | 24.5% | |
none | 62.4% | |