Figure 1: Pubertal stage, depending on age, for girls and boys with and without regular singing activity. Separate regression lines are drawn for each subgroup. Singers had more advanced puberty than non-singing children of matching age and gender.
Figure 1: Pubertal stage, depending on age, for girls and boys with and without regular singing activity. Separate regression lines are drawn for each subgroup. Singers had more advanced puberty than non-singing children of matching age and gender.