Table 1 Age, gender, pubertal stage and body mass index in overweight and normal weight children and adolescents included in the study.

	Overweight	Normal weight
Number	1205	84
Age (years)	11.8 (9.5–13.4)	11.3 (9.1–13.3)
Male	557 (46%)	42 (50%)
Prepubertal	479 (39%)	36 (43%)
Pubertal	454 (38%)	32 (38%)
Late/postpubertal	272 (23%)	16 (19%)
BMI (kg/m2)	27.3 (24.8–30.8)	17.7 (15.5–20.4)

Data as percentage or median and interquartile range. BMI, body mass index.