| Boys |
| Girls |
| Total |
| ||||
| N | Mean (Std) | p | N | Mean (Std) | p | N | Mean (Std) | p | |
| Age (years) |
|
|
| ||||||
| 7 - 8 | 113 | 16.7 (2.7) |
| 137 | 16.4 (2.7) |
| 250 | 16.5 (2.7) |
|
| 9 - 10 | 158 | 17.1 (2.8) |
| 132 | 16.7 (2.6) |
| 290 | 16.9 (2.7) |
|
| 11 - 12 | 123 | 18.6 (4.0) |
| 112 | 19.3 (3.5) |
| 235 | 18.9 (3.8) |
|
| Nationality |
|
|
| ||||||
| Luxembourgers | 228 | 16.8 (3.8) | ** | 203 | 17.0 (4.1) | * | 431 | 16.9 (4.0) | ** |
| Foreigners | 166 | 18.4 (2.8) |
| 178 | 17.8 (2.5) |
| 344 | 18.1 (2.7) |
|
| Education level of father |
|
|
|
|
|
|
|
|
|
| Primary | 82 | 19.1 (3.1) | ** | 96 | 19.0 (2.8) | ** | 177 | 19.0 (2.9) | ** |
| Secondary | 209 | 17.0 (3.7) |
| 193 | 17.0 (3.7) |
| 402 | 17.0 (3.7) |
|
| Tertiary | 103 | 17.2 (2.4) |
| 92 | 16.5 (2.4) |
| 196 | 16.9 (2.4) |
|
| Education level of mother |
|
|
|
|
|
|
|
|
|
| Primary | 97 | 18.9 (3.3) | ** | 111 | 18.1 (3.3) | ** | 207 | 18.5 (3.3) | ** |
| Secondary | 187 | 16.8 (3.5) |
| 187 | 17.4 (3.6) |
| 375 | 17.1 (3.6) |
|
| Tertiary | 109 | 17.3 (2.4) |
| 82 | 16.1 (2.0) |
| 191 | 16.8 (2.3) |
|
| Living conditions (available income) |
|
|
| ||||||
| In poverty | 56 | 18.6 (2.7) | * | 63 | 19.0 (2.9) | ** | 119 | 18.8 (2.8) | ** |
| Out poverty | 338 | 17.3 (3.5) |
| 318 | 17.0 (3.2) |
| 656 | 17.2 (3.3) |
|
| Occupational status if mother |
|
|
|
|
|
|
|
|
|
| Works | 214 | 17.1 (3.1) | * | 219 | 17.9 (3.3) | * | 433 | 17.5 (3.2) |
|
| Not works | 180 | 17.9 (3.4) |
| 162 | 16.7 (2.9) |
| 342 | 17.3 (3.2) |
|