Table 1
Cord blood iron status at various gestational ages
| Variable | Very preterm (24–29 weeks) |
Preterm (30–36 weeks) |
Term (37–41 weeks) |
p Value |
| Number | 26 | 50 | 68 | |
| Gestation (weeks) | 27.1 (1.6) | 32.8 (1.9) | 39.0 (1.3) | |
| Weight (g) | 992 (305) | 1904 (555) | 3338 (512) | |
| Hb (g/l) | 163 (16) | 158 (21) | 161 (17) | 0.391-150 |
| Reticulocyte (%) | 4.7 (1.7) | 3.9 (1.3) | 3.4 (0.8) | <0.00011-150 |
| Iron (μmol/l) | 17.4 (10.7) | 20.8 (8.8) | 26.0 (7.7) | <0.00011-150 |
| TIBC (μmol/l) | 31.0 (27.0–35.0) | 36.0 (31.5–44.0) | 42.0 (36.0–49.5) | 0.011-151 |
| Ferritin (μg/l) | 75 (44–117) | 90 (45–142) | 131 (90–238) | <0.00011-151 |
| STfR (mg/l) | 10.3 (7.5–16.5) | 8.2 (5.4–12.3) | 8.4 (6.4–10.6) | 0.081-151 |
| TfR-F index | 5.5 (3.3–8.6) | 4.6 (2.8–7.1) | 3.8 (3.0–4.9) | 0.011-151 |
