Table 1.
Sociodemographic characteristics of 14-year-old adolescents participating in the Youth Health Monitor between school years 2006–2007 and 2012–2013, Amsterdam, the Netherlands
| 2006–2007 | 2007–2008 | 2008–2009 | 2009–2010 | 2010–2011 | 2011–2012 | 2012–2013 | Total | |
|---|---|---|---|---|---|---|---|---|
| Participants (n) | 2351 | 2547 | 2185 | 2580 | 3230 | 3331 | 3020 | 19 244 |
| Age (years) | ||||||||
| Mean | 13·6 | 13·6 | 13·5 | 13·5 | 13·6 | 13·5 | 13·7 | 13·6 |
| sd | 0·7 | 0·7 | 0·6 | 0·6 | 0·7 | 0·6 | 0·7 | 0·6 |
| Sex (%) | ||||||||
| Boys | 49·6 | 48·7 | 50·8 | 50·3 | 48·8 | 50·1 | 48·5 | 49·5 |
| Girls | 50·4 | 51·3 | 49·2 | 49·7 | 51·2 | 49·9 | 51·5 | 50·5 |
| District of Amsterdam (%) | ||||||||
| Centre | 5·8 | 6·2 | 7·0 | 6·8 | 6·1 | 6·5 | 7·3 | 6·5 |
| East | 15·3 | 16·0 | 15·9 | 16·8 | 15·8 | 16·9 | 18·0 | 16·4 |
| South-East | 8·1 | 10·3 | 8·4 | 10·9 | 9·0 | 7·9 | 8·7 | 9·0 |
| South | 12·0 | 11·2 | 12·6 | 11·0 | 11·4 | 11·1 | 12·7 | 11·7 |
| North | 11·6 | 11·2 | 9·9 | 11·2 | 14·9 | 15·6 | 15·3 | 13·1 |
| West | 16·6 | 14·3 | 16·5 | 15·6 | 14·1 | 14·0 | 14·0 | 14·9 |
| New-West | 30·5 | 30·7 | 29·8 | 27·7 | 28·9 | 27·8 | 24·0 | 28·3 |
| Ethnicity (%) | ||||||||
| Dutch | 40·1 | 42·9 | 44·6 | 43·7 | 44·0 | 42·8 | 45·8 | 43·5 |
| Moroccan | 27·1 | 24·6 | 25·1 | 25·6 | 25·1 | 27·0 | 25·0 | 25·7 |
| Turkish | 16·3 | 14·3 | 14·9 | 12·2 | 13·7 | 14·7 | 13·8 | 14·2 |
| Surinamese | 16·5 | 18·2 | 15·5 | 18·5 | 17·2 | 15·5 | 15·5 | 16·6 |
| Educational level (%) | ||||||||
| Practical pre-vocational | 34·4 | 30·9 | 30·3 | 28·4 | 29·4 | 29·8 | 31·7 | 30·6 |
| Theoretical pre-vocational | 23·4 | 23·8 | 23·8 | 23·8 | 23·3 | 23·7 | 20·4 | 23·1 |
| Senior general secondary | 15·0 | 14·9 | 15·5 | 15·8 | 14·7 | 15·1 | 17·2 | 15·5 |
| Pre-university | 27·1 | 30·3 | 30·4 | 31·9 | 32·6 | 31·5 | 30·7 | 30·8 |