Table 1 Sample characteristics
Variable (missing values) | Categories | n (mean) | % (SD) |
|---|---|---|---|
Age (366) | (5.58) | (0.50) | |
Sex (1) | Male | 33,323 | 51.4 |
Female | 31,559 | 48.6 | |
U9 participation (0) | No | 6978 | 10.8 |
Yes | 57,905 | 89.3 | |
Reminder system (0) | Not exposed | 36,712 | 56.6 |
Exposed | 28,171 | 43.4 | |
Neighbourhood deprivation (1.995) | Very low | 5531 | 8.5 |
Low | 16,408 | 25.3 | |
Middle | 23,474 | 36.2 | |
High | 13,808 | 21.3 | |
Very high | 3667 | 5.7 | |
First language (13.916) | German | 31,180 | 48.1 |
Other | 10,869 | 21.3 | |
Yugoslav | 1392 | 2.2 | |
Turkish | 3569 | 5.5 | |
Russian | 1962 | 3.0 | |
Moroccan | 1995 | 3.1 | |
Family status (12.073) | Two-parent family | 44,721 | 68.9 |
One-parent family | 8089 | 12.5 | |
Total | 64,883 | 100.00 |