AllSway to neutral patternFlat patternHyperlordotic pattern
Mean (SD)Mean (SD)Mean (SD)Mean (SD)
Boys, n=1101
 Weight
  Birth, g3198.9 (516.1)3229.3 (491.0)3064.1 (600.0)3189.3 (519.0)
  4 years, kg17.8 (2.6)17.9 (2.6)17.3 (2.3)18.4 (1.6)
  7 years, kg25.8 (4.7)26.0 (4.8)24.5 (3.9)26.9 (4.1)
 Length/height, cm
  Birth48.9 (2.5)49.1 (2.3)48.2 (3.1)48.2 (2.9)
  4 years105.3 (4.5)105.5 (4.5)104.8 (4.6)105.4 (3.3)
  7 years123.9 (5.3)123.9 (5.4)123.3 (5.3)125.0 (5.4)
 Ponderal index/BMI
  Birth, 100×(g/cm3)2.71 (0.27)2.71 (0.27)2.70 (0.28)2.85 (0.36)
  4 years, kg/m2 16.00 (1.49)16.06 (1.52)15.71 (1.32)16.55 (1.26)
  7 years, kg/m2 16.70 (2.19)16.85 (2.24)16.00 (1.79)17.19 (1.98)
  • BMI, body mass index.