Table 2.

Primary Efficacy and Safety Outcomes: Height and Serum Ferritin

InterventionUsual CareAdjusted Difference*PValue
nMean(SD)nMean(SD)Difference(95% CI)
Height (cm)
 Baseline334136.2(6.8)329136.5(7.0)
 Year 1313143.1(6.9)307143.1(7.4).4(0, 0.7).98
 Year 2303149.2(7.5)299149.2(7.8).4(0, 0.9).97
 Year 3318156.2(8.1)306156.2(8.7).5(−.1, 1.1).95
 Year 4278162.8(8.2)261162.4(8.6).6(−.1, 1.2).96
 Year 5276167.3(8.4)264167.4(8.7).4(−.2, 1.0).88
 Year 6251170.0(8.7)237169.7(9.1).3(−.4, 0.9).78
 Last visit294170.8(8.8)283171.4(9.1)−.3(−1.0, 0.4).20
Serum ferritin (mg/mL)
 Baseline32236.3(19.2)32138.7(21.2)
 Year 131035.2(21.4)30337.3(18.6)−.9(−3.5, 1.7).25
 Year 329929.7(17.7)28633.5(22.8)−2.1(−4.9, .8).08
 Last visit28740.1(28.9)27043.8(32.6)−2.9(−7.2, 1.4).10
  • SD indicates standard deviation.

  • * Adjusted for baseline value, sex, and age at last visit (for last visit only).

  • One-sided test.