From: Main characteristics and participation rate of European adolescents included in the HELENA study
Age strata(Years) | Females | Males | ||
---|---|---|---|---|
n | % | n | % | |
[12.5-14] | 610 | 33.1 | 530 | 31.5 |
[14-15] | 466 | 25.3 | 409 | 24.3 |
[15-16] | 440 | 23.8 | 417 | 24.8 |
[16–17.5] | 329 | 17.0 | 327 | 19.4 |