Table 1

Summary statistics on the mean and SD of weight and length increment over different time intervals, grouped by mean age

Mean ageWeight increment (kg)Length increment (cm)
nMeanobs SDobs nMeanobs SDobs
2-week intervals
 0–3 months38570.460.2214421.930.88
 4–6 months10600.310.171051.220.66
 7–9 months2900.220.16330.800.73
 10–12 months950.160.17170.890.64
4-week intervals
 0–3 months81720.880.3229843.441.14
 4–6 months58430.580.2331832.160.89
 7–9 months10740.380.225571.530.80
 10–12 months4970.290.241981.220.71
8-week intervals
 0–3 months11 7351.730.4940126.521.5
 4–6 months77661.220.3936314.621.22
 7–9 months32490.730.3320672.880.98
 10–12 months27680.540.3118542.380.87
 Total46 40620 083
  • Data from the Newcastle Growth and Development Study,7 Gateshead Millennium Study8 9 and Tampere Study.10

  • Meanobs, observed mean; SDobs, observed SD.