Table 1: Parameters of the study and the control group.

Study group Control group P
Mean (SD)Median (QR)Mean (SD)Median (QR)

Age (years)13.8 (2.3)14.0 (3.0)14.1 (2.5)14.0 (4.0)0.2
Height (m)1.6 (0.1)1.6 (0.1)1.6 (0.1)1.6 (0.2)0.2
Weight (kg)48.9 (10.3)49.0 (13.0)47.7 (11.7)49.0 (18.6)0.5
BMI (kg m−2)18.9 (2.9)18.7 (3.2)19.1 (3.1)18.8 (3.6)0.5