Table 1 Descriptive characteristics of study participants. Shown are sample size, age, gender, nationality, and the respective regional typology for all participants and the three age categories
N | Age (y) | Gender | Nationality | Regional typology | |||||
|---|---|---|---|---|---|---|---|---|---|
(min–max) | Male | Female | Swiss | Foreign | Urban | Intermediate | Rural | ||
All children | 1252 | 11.8 (6.5–17.9) | 647 (51.7%) | 605 (48.3%) | 935 (74.7%) | 317 (25.3%) | 818 (65.3%) | 266 (21.3%) | 168 (13.4%) |
1st grade | 409 | 7.4 (6.5–8.6) | 199 (48.7%) | 210 (51.3%) | 317 (77.5%) | 92 (22.5%) | 299 (73.1%) | 58 (14.2%) | 52 (12.7%) |
6th grade | 469 | 12.6 (11.6–14.0) | 268 (57.1%) | 201 (42.9%) | 356 (75.9%) | 113 (24.1%) | 271 (57.8%) | 122 (26.0%) | 76 (16.2%) |
9th grade | 374 | 15.7 (14.4–17.9) | 180 (48.1%) | 194 (51.9%) | 262 (70.1%) | 112 (29.9%) | 248 (66.3%) | 86 (23.0%) | 40 (10.7%) |