Table 3.
Maternal iron status in the confirmatory sample (mid- and late pregnancy, 3 days postpartum).
| Iron measure | Mid pregnancy | Late pregnancy | 3 days postpartum |
|---|---|---|---|
| (n = 567)a | (n = 557)b | (n = 265) | |
| Hemoglobin, g/L | 121.5 ± 9.8 | 114.7 ± 9.9 | 104.2 ± 11.2c |
| MCV, fl | 85.1 ± 4.8 | 84.8 ± 4.7 | 78.9 ± 8.3d |
| ZPP, μmol/mol | 54.9 ± 31.6 | 88.4 ± 44.2e | — |
| Ferritin, ng/mL | 41.9 ± 35.3 | 14.1 ± 13.8e | — |
| sTfR, nmol/L | 15.6 ± 5.3 | 30.6 ± 10.7e | — |
| sTfR Index | 11.6 ± 7.4 | 31.9 ± 17.0e |
aZPP values were available for 330 subjects.
bZPP values were available for 452 subjects, ferritin and sTfR for 543 subjects.
cSignificant differences were found between the 3 measures, P < 0.001.
dSignificant differences were found between the 3 measures: mid pregnancy compared to late pregnancy, P < 0.05; mid pregnancy and late pregnancy compared to postpartum, P < 0.001.
eSignificant differences were found between the 2 measures, P < 0.001.