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Table 2 Initial and final mean blood hemoglobin concentrations for both groups of children on the different protocols of iron supplementation

From: Cyclical iron supplementation to reduce anemia among Brazilian preschoolers: a randomized controlled trial

Group Anemia (%) Hemoglobin (g/dL)
  Initial Final Initial Final Change p-value
The Weekly Group (n = 51) 17.65 3.92 11.75 ± 0.76 12.02 ± 0.72 0.27 ± 0.77 = 0.016
The Cyclical Group (n = 48) 22.90 6.25 11.66 ± 0.91 12.13 ± 0.89 0.47 ± 0.72 < 0.0005
  1. Data shown as means ± standard deviation.