Table 4.
Fetal biometry at mid-pregnancy according to total iron intake level at mid-pregnancy
| |
|
Total iron intake (mg) |
|
|||||
|---|---|---|---|---|---|---|---|---|
| |
Total |
1st tertile (< 11.49) |
2nd tertile (11.49 ~ < 17.04) |
3rd tertile (≥ 17.04) |
|
|||
| Fetal growth1 | n | β (SE) | P-value | β (SE) | P-value | β (SE) | P-value | R2 |
| Biparietal diameter, cm |
294 |
−0.03 (0.04) |
0.488 |
1 |
|
−0.09 (0.04) |
0.019 |
0.941 |
| Abdominal circumference, cm |
212 |
−0.01 (0.22) |
0.958 |
1 |
|
−0.41 (0.18) |
0.027 |
0.922 |
| Femur length, cm | 265 | −0.01 (0.04) | 0.877 | 1 | −0.07 (0.04) | 0.051 | 0.946 | |
1 Adjusted for gestational age at the time of ultrasound measurement, maternal age, maternal height, urinary cotinine level (ln), pre-pregnancy BMI, parity, family monthly income, sex of babies and energy intake (ln).