Descriptive information for dancers (n=53) and controls (n=40), at baseline and final (12 months) visit given as the mean (SD)
| Baseline (0 months) | Final (12 months) | |||
|---|---|---|---|---|
| Characteristic | Dancers | Controls | Dancers | Controls |
| *Significant difference from controls (p<0.01). | ||||
| †BMI, body mass index = weight (kg)/(height (m))2. | ||||
| ‡Current extracurricular sport (hours/week). | ||||
| §Defined by self-reported Tanner breast staging where 1 indicates prepubertal and 2–4 indicates peripubertal. Figures given as the number (%). | ||||
| Age (years) | 9.6 (0.8) | 9.6 (0.7) | 10.7 (0.8) | 10.6 (0.7) |
| Height (cm) | 136.2 (6.7) | 138.2 (7.6) | 143.0 (7.6) | 144.9 (7.8) |
| Weight (kg) | 30.3 (5.3)* | 33.8 (6.3) | 34.4 (6.2)* | 39.2 (7.5) |
| BMI (kg/m2)† | 16.3 (2.2)* | 17.6 (2.7) | 16.7 (2.0)* | 18.6 (2.8) |
| Hours/week sport‡ | 2.8 (2.2) | 1.5 (0.9) | 2.6 (1.8) | 1.8 (1.2) |
| Tanner stage 1§ | 48 (91%) | 22 (55%) | 27 (51%) | 1 (25%) |
| Tanner stage 2–4§ | 5 (9%)* | 18 (45%) | 26 (49%) | 30 (75%) |