Table 3

Sex-specific anthropometric characteristics from birth up to 15–17 years of age for normal weight and overweight/obese 15–17-year-olds in the Tromsø Study, Fit Futures (n=961)*

GirlsBoys
Normal weightOverweight/obeseNormal weightOverweight/obese
Mean95 % CIMean95 % CIMean95 % CIMean95 % CI
Birth weight (g) 3418.0 (3358.1 to 3478.2) 3576.0 (3462.0 to 3689.5) 3597.0(3535.5 to 3659.0)3622.0(3522.2 to 3721.4)
Birth weight SDS −0.67 (−0.86 to −0.49) −0.24 (−0.52 to −0.04) −0.25(−0.39 to −0.11)−0.19(−0.41 to 0.03)
Birth length (cm)49.2(48.9 to 49.4)49.7(49.2 to 50.1)50.1(49.9 to 50.4)50.1(49.7 to 50.6)
Ponderal index (kg/m3)28.55(28.24 to 28.85)29.03(28.44 to 29.62)28.34(28.04 to 28.64)28.61(28.14 to 29.08)
Weight 2–4 years (kg) 13.2 (13.0 to 13.4) 14.2 (13.8 to 14.6) 14.0(13.8 to 14.2)14.3(13.9 to 14.7)
Weight SDS† 2–4 years −0.23 (−0.36  to  −0.09) 0.23 (−0.02 to 0.48) 0.09(−0.04 to 0.22)0.42(0.14 to 0.69)
Height 2–4 years (cm)90.8(90.3 to 91.2)91.8(90.8 to 92.9)92.6(92.4 to 93.3)92.3(91.4 to 93.2)
BMI 2–4 years (kg/m2) 16.00 (15.84 to 16.16) 16.84 (16.53 to 17.15) 16.25 (16.10 to 16.40) 16.73 (16.43 to 17.04)
Weight 5–7 years (kg) 20.8 (20.5 to 21.1) 24.6 (23.6 to 25.5) 21.5 (21.2 to 21.8) 24.2 (23.4 to 25.1)
Weight SDS† 5–7 years −0.27 (−0.37  to  −0.17) 0.80 (0.57 to 1.02) −0.09 (−0.19 to 0.001) 0.75 (0.54 to 0.97)
Height 5–7 years (cm) 116.2 (115.6 to 116.7) 117.5 (116.3 to 118.7) 117.9(117.4 to 118.5)118.9(117.9 to 119.9)
BMI 5–7 years (kg/m2) 15.41 (15.25 to 15.57) 17.69 (17.16 to 18.22) 15.44 (15.30 to 15.58) 17.05 (16.59 to 17.51)
Weight 15–17 years (kg) 56.8 (56.2 to 57.5) 76.8 (74.3 to 79.4) 64.4 (63.6 to 65.3) 88.9 (86.2 to 91.6)
Height 15–17 years (cm)165.0(164.4 to 165.7)164.3(162.9 to 165.6)176.9(176.2 to 177.5)177.0(175.8 to 178.3)
BMI 15–17 years (kg/m2) 20.84 (20.65 to 21.03) 28.42 (27.59 to 29.25) 20.57 (20.36 to 20.78) 28.30 (27.59 to 29.01)
  • *Analysed in the dataset with 20 imputations (multiple imputation), n=961 (469 girls and 492 boys).

  • †SDS, SD scores according to Norwegian reference data.23

  • BMI, body mass index.

  • Numbers in italic type are significant (p<0.05).