Table 2—

Change from 0 to 2 years

nIGnCMGP
ΔWeight (kg)556.8 (4.8, 10.0)456.0 (5.3, 8.6)0.65*
ΔWeight Z-score550.09 (−0.29, 0.34)45−0.07 (−0.22, 0.23)0.40
ΔHeight (cm)§5410.7 (6.8, 14.0)4310.1 (7.2, 12.5)0.66
ΔHeight Z-score540.04 (−0.26, 0.37)43−0.04 (−0.29, 0.30)0.57
ΔBMI (kg/m2)540.9 (0.1, 1.7)431.0 (0.4, 1.9)0.79
ΔBMI Z-score540.01 (−0.29, 0.25)43−0.02 (−0.30, 0.30)0.88
ΔTanner stage#510 (0, 1)400 (0, 0.5)0.35**
  • Data are medians (25th percentile, 75th percentile).

  • *

    * t test with unequal variance.

  • Z-scores for subjects >20 years of age at 2 years (n = 5) were calculated using data available for 20-year-olds (25).

  • t test with equal variance.

  • §

    § Height was used as recorded without adjustment for changes from 0 to 2 years that were negative.

  • Wilcoxon’s rank-sum test.

  • #

    # Eight subjects had Tanner stage measurement that decreased by 1 from baseline to 2 years (seven of these were from Tanner stage 5 to Tanner stage 4). These eight measurements of −1 were reassigned to 0.

  • **

    ** χ2 test.