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Table 3 Differential change in haemoglobin, SF, TfR, and body iron during intervention in two intervention groups compared to the control group, from 4 multiple linear regression models

From: Efficacy of iron fortification compared to iron supplementation among Vietnamese schoolchildren

  Intervention group
Outcome variables Iron fortification* p Iron supplementation* p
Haemoglobin (g/L)1 2.59 (-0.22 – 5.40) 0.07 6.19 (3.42 – 8.96) 0.001
SF (μg/L)2 23.5 (6.82 – 40.25) 0.006 117.3(100.86 – 133.64) 0.001
TfR (mg/L)3 -0.04 (-0.32 – 0.23) 0.76 -0.51 (-0.78 – -0.24) 0.001
Body iron (mg/kg)4 1.37(0.85 – 1.89) 0.001 4.37 (3.86 – 4.88) 0.001
  1. 1 Adjusted for Hb baseline, sex and age
  2. 2 Adjusted for SF baseline, sex and age
  3. 3 Adjusted for TfR baseline, sex and age
  4. 4 Adjusted for body iron baseline, sex and age
  5. * Regression coefficients (95% CI)