Table 3.
Maternal and Infant Iron Status by Study Group*
| (n)a | Pre- and Postnatal ID (9) | Prenatal ID Only (21) | Postnatal ID Only (20) | Not ID (30) | p-Values |
|---|---|---|---|---|---|
| Maternal hemoglobinb, g/L | 110.4 ±9.4 | 117.9 ±15.0 | 113.1 ±9.9 | 112.0 ±9.5 | .24 |
| Cord blood | |||||
| Hemoglobin, g/L | 138.0 ±17.9 | 145.0 ±19.0 | 143.10 ±31.6 | 147.3 ±17.2 | .72 |
| Ferritin, μg/L | 84.5 ±27.7c | 73.5 ±79.8c | 202.4 ±78.0d | 177.8 ±58.6d | .00 |
| sTfR, nmol/L | 27.7 ±16.2 | 28.4 ±16.7 | 27.7 ±11.0 | 26.5 ±16.5 | .97 |
| ZPP/H, μmol/mol | 126.2 ±20.8c | 132.2 ±33.6c | 91.0 ±16.3d | 94.5 ±17.1d | .00 |
| 9 months | |||||
| Hemoglobin, g/L | 100.7 ±6.1c | 113.0 ±5.1d | 104.7 ±4.5c | 114.6 ±7.4d | .00 |
| MCV, fl | 72.1 ±3.4c | 80.2 ±1.9d | 70.9 ±7.6c | 79.5 ±2.6d | .00 |
| RDW, % | 15.0 ±1.9c | 12.5 ±0.8d | 15.2 ±2.0c | 12.8 ±0.8d | .00 |
| Ferritin, μg/L | 28.1 ±27.6 | 46.3 ±27.6 | 41.4 ±42.2 | 45.3 ±32.1 | .54 |
| sTfR, nmol/L | 33.0 ±11.6c | 22.2 ±8.3d | 29.6 ±18.2c | 21.0 ±7.1d | .01 |
| ZPP/H, μmol/mol | 146.6 ±33.0c | 97.7 ±29.9d | 141.8 ±67.9c | 96.3 ±33.1d | .00 |
ID, iron deficiency.
*
Values are expressed as means ±SD, and p-values are based on ANOVA.
a
N varies slightly due to occasional missing data for some measures.
b
Maternal hemoglobin in late pregnancy (36–37 weeks).
Superscript letters c and d: groups with the same superscript do not differ; those with different letters differ significantly (p <.05).