Fasting serum ferritin concentrations from 52 iron-replete* women basally and after 6 months of taking a daily iron supplement providing either 24 mg or 48 mg of iron or no supplementation
| . | Age, y . | Baseline ferritin, μg/L . | Ferritin at 6 mo, μg/L . | Weekly change, μg/L . | P . |
|---|---|---|---|---|---|
| Nonmenstruating women, n = 20 | |||||
| No Fe/group I, n = 9 | 62 ± 8.4 | 193 ± 78 | 142 ± 67 | −1.98 ± 1.00 | <.004 |
| Fe 24 mg/group II, n = 11 | 58 ± 9.0 | 151 ± 67 | 146 ± 34 | −0.18 ± 0.90 | .765 |
| Menstruating women, n = 32 | |||||
| No Fe/group III, n = 10 | 40 ± 11.8 | 205 ± 48 | 147 ± 54 | −2.26 ± 1.06 | <.002 |
| Fe 24 mg/group IV, n = 12 | 41 ± 9.1 | 137 ± 35 | 112 ± 40 | −0.96 ± 0.86 | <.001 |
| Fe 48 mg/group V, n = 10 | 42 ± 8.2 | 156 ± 64 | 151 ± 45 | −0.19 ± 1.16 | .846 |
| . | Age, y . | Baseline ferritin, μg/L . | Ferritin at 6 mo, μg/L . | Weekly change, μg/L . | P . |
|---|---|---|---|---|---|
| Nonmenstruating women, n = 20 | |||||
| No Fe/group I, n = 9 | 62 ± 8.4 | 193 ± 78 | 142 ± 67 | −1.98 ± 1.00 | <.004 |
| Fe 24 mg/group II, n = 11 | 58 ± 9.0 | 151 ± 67 | 146 ± 34 | −0.18 ± 0.90 | .765 |
| Menstruating women, n = 32 | |||||
| No Fe/group III, n = 10 | 40 ± 11.8 | 205 ± 48 | 147 ± 54 | −2.26 ± 1.06 | <.002 |
| Fe 24 mg/group IV, n = 12 | 41 ± 9.1 | 137 ± 35 | 112 ± 40 | −0.96 ± 0.86 | <.001 |
| Fe 48 mg/group V, n = 10 | 42 ± 8.2 | 156 ± 64 | 151 ± 45 | −0.19 ± 1.16 | .846 |
Within-group statistical analysis (Wilcoxon signed rank test). Values are expressed as mean ± standard deviation.
Serum ferritin ≥ 100 μg/L and ESR ≤ 10 mm/h.