Table 4. Thyroid function-related markers in the plasma of pregnant women from Yongchuan, Chongqing, stratified according to the UIC range.
| Group | FT3 (pmol/L) | FT4 (pmol/L) | TSH (mU/L) |
|---|---|---|---|
| <150 µg/L | 2.76 (1.19 – 3.99) | 11.45 (6.46 – 21.10) | 1.45 (0.01 – 6.34)a |
| 150 – 249 µg/L | 2.87 (1.07 – 6.08) | 11.30 (7.61 – 17.74) | 1.67 (0.01 – 7.21) |
| 250 – 499 µg/L | 2.54 (0.86 – 3.78) | 10.25 (6.41 – 16.40) | 1.87 (0.25 – 10.80)a |
| ≥500 µg/L | 2.74 (1.23 – 0.87) | 10.80 (0.20 – 12.87) | 2.28 (0.21 – 4.35)a |
Data are reported as median (minimum – maximum).
a
Compared to the adequate iodine intake group (orange), P < 0.05 (Kruskal–Wallis).