Table 3.
Thyroid Hormones Values According to Gestational Age in Pregnant Women With High Thyroid Antibody Values
| Thyroid Hormone | Gestional Age, wka | Mean | Median | 2.5th %ile |
97.5th %ile |
|---|---|---|---|---|---|
| Thyroid-stimulating hormone (μUI/mL) | <11 | 1.75 ± 3.64 | 1.25 | 0.1 | 13.5 |
| 11 to 20 | 1.63 ± 1.30 | 1.44 | 0.0 | - | |
| 21 to 30 | 1.89 ± 0.96 | 1.62 | 0.4 | - | |
| 31 to 36 | 1.72 ± 0.91 | 1.72 | 0.2 | 4.5 | |
| >36 | 1.19 ± 0.62 | 1.19 | 0.7 | - | |
| Free triiodothyronine (pg/mL) | <11 | 3.31 ± 0.58 | 3.36 | 1.7 | 4.4 |
| 11 to 20 | 3.44 ± 0.65 | 3.59 | 1.7 | - | |
| 21 to 30 | 3.24 ± 0.51 | 3.15 | 2.3 | - | |
| 31 to 36 | 3.22 ± 0.47 | 3.24 | 2.4 | 4.3 | |
| >36 | 3.02 ± 0.15 | 3.02 | 2.9 | - | |
| Free thyroxine (ng/dL) | <11 | 1.06 ± 0.15 | 1.06 | 0.8 | 1.4 |
| 11 to 20 | 1.01 ± 0.15 | 1.03 | 0.6 | - | |
| 21 to 30 | 0.89 ± 0.97 | 0.87 | 0.7 | - | |
| 31 to 36 | 0.90 ± 0.13 | 0.86 | 0.7 | 1.3 | |
| >36 | 0.90 ± 0.11 | 0.90 | 0.8 | - | |
a <11 weeks (n = 330); 11 to 20 weeks (n = 200); 21 to 30 weeks (n = 208); 31 to 36 weeks (n = 269); >36 weeks (n = 14).