Table 2

Mean differences in growth between adjacent time points in the 1997 and 2005 cohorts compared with the 1991–1992 cohort (n=546)

Growth parameterTime points1997
Mean difference*
(95% CI)
P value2005
Mean difference*
(95% CI)
P value
WeightBirth to 2 years0.050 (−0.097 to 0.197)0.510.044 (−0.101 to 0.188)0.55
2–8 years0.022 (−0.015 to 0.058)0.240.002 (−0.036 to 0.041)0.90
Head circumferenceBirth to 2 years−0.046 (−0.197 to 0.105)0.55−0.108 (−0.255 to 0.040)0.15
2–8 years0.030 (−0.001 to 0.060)0.0560.001 (−0.034 to 0.032)0.95
Height2–8 years−0.016 (−0.043 to 0.012)0.27−0.039 (−0.069 to −0.008)0.012
BMI2–8 years0.033 (−0.010 to 0.076)0.140.034 (−0.012 to 0.080)0.15
  • *Mean difference in SD per year between eras for each time period.

  • BMI, body mass index.