Table 2 Comparison of nutritional iron status at baseline and during the follow-up by iron compound supplement
Baseline | Post-supplementation | 6 months after supplementation | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron Status/Supplement compound | Bis-glycinate chelate n = 101 | Ferrous sulfate n = 99 | P value | Bis-glycinate chelate n = 86 | Ferrous sulfate n = 90 | P value | Bis-glycinate chelate n = 45 | Ferrous sulfate n = 44 | P value | ||||||
Hemoglobin concentration (g/l)a | 141.6 | 140.2 | 141.7 | 140.1 | 141.7 | 139.8 | |||||||||
Standard deviation | 10.3 | 7.6 | 0.273b | 8.2 | 7.5 | 0.175b | 7.3 | 6.9 | 0.205b | ||||||
Ferritin concentration (μg/l)a | 8.7 | 8.9 | 29.6 | 28.9 | 31.0 | 25.2 | |||||||||
Standard deviation | 2.1 | 2.1 | 0.548b | 15.1 | 13.1 | 0.728b | 18.7 | 12.5 | 0.090b | ||||||
Iron nutritional statusc | |||||||||||||||
Low iron stores | 101 | 100 | 99 | 100 | 9 | 10.5 | 6 | 6.7 | 5 | 11.1 | 4 | 9.1 | |||
Normal | 0 | 0.0 | 0 | 0.0 | -- | 77 | 89.5 | 84 | 93.3 | 0.367d | 40 | 88.9 | 40 | 90.9 | 0.752d |