Table 1: Characteristics of boys and girls studied for body composition by means of air displacement plethysmography (boys = 43, girls = 33).

BoysGirls

Age at measurement (yr)4.42 ± 0.0914.41 ± 0.032
Weight (kg)18.9 ± 2.218.1 ± 2.2
Weight z-score30.08 ± 1.03−0.06 ± 0.94
Height (cm)109 ± 4107 ± 4
Height z-score30.15 ± 0.81−0.12 ± 0.98
BMI (kg/m2)15.9 ± 1.515.8 ± 1.1
Body fat (%)25.2 ± 4.7 26.8 ± 4.0

Values are means ± standard deviations. BMI: body mass index.
1Range: 4.34–4.96 yr.
2Range: 4.34–4.48 yr.
3Calculated using reference data for Swedish children [12].