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Table 1 Descriptive data of study sample, boys and girls

From: Physical activity, sedentary time and sleep duration: associations with body composition in 10–12-year-old Estonian schoolchildren

  Boys (n = 96) Girls (n = 115) All (n = 211)
Age (yrs) 11.07 ± 0.74 10.86 ± 0.68 10.96 ± 0.72
Body weight (kg) 45.4 ± 12.52 43.5 ± 11.4 44.35 ± 11.9
Height (cm) 151.3 ± 8.84 149.9 ± 8.9 150.6 ± 8.9
BMI 19.56 ± 3.72 19.14 ± 3.78 19.33 ± 3.75
Waist circumference (cm) 66.45 ± 9.35 64.14 ± 8.89* 65.19 ± 9.16
Waist-to-height ratio 0.44 ± 0.05 0.43 ± 0.05* 0.43 ± 0.05
Fat free mass (kg) 36.1 ± 6.75 33.45 ± 7.39* 34.6 ± 7.21
Body fat percent 18.2 ± 8.65 22.17 ± 5.51* 20.37 ± 7.37
Sum of skinfolds 40.4 ± 26.1 59.7 ± 29.2* 51.0 ± 29.4
APHV 13.78 ± 0.51 13.72 ± 0.42 13.75 ± 0.461
  1. Value are presented as mean ± SD; * - p < 0.05 as compared with boys