Table 2.
Serum concentrations of TSH, FT3, FT4, TRAb and TPO Ab for the ST and PT groups at inclusion and at weeks 6, 18 and 36
| Laboratory | ST group | PT group | p value | Ref. value |
|---|---|---|---|---|
| TSH, mIU/l | ||||
| At inclusion | 0.01 (0.01–0.02) | 0.01 (0.01–0.02) | n.s. | 0.4–5.0 |
| At 6 weeks | 0.02 (0.01–4.30) | 0.01 (0.01–5.80 | n.s. | |
| At 18 weeks | 0.05 (0.01–20.0) | 0.2 (0.01–11.0) | 0.042 | |
| At 36 weeks | 1.4 (0.0–39.0) | 0.2 (0.0–12.0 | n.s. | |
| FT3, pmol/l | ||||
| At inclusion | 18.0 (8.6–30) | 14.5 (6.1–30) | n.s. | 3.3–6.0 |
| At 6 weeks | 5.5 (3.1–11.0) | 5.7 (3.8–12.0) | n.s. | |
| At 18 weeks | 4.2 (3.2–6.1) | 4.4 (3.4–6.2) | n.s. | |
| At 36 weeks | 4.3 (3.3–6.0) | 4.1 (3.6–6.5) | n.s. | |
| FT4, pmol/l | ||||
| At inclusion | 42 (24–84) | 37 (15–105) | n.s. | 10–22 |
| At 6 weeks | 19 (11–65) | 19 (9–29) | n.s. | |
| At 18 weeks | 14 (7–25) | 17 (12–21) | 0.012 | |
| At 36 weeks | 15 (12–20) | 18 (13–25) | 0.013 | |
| TRAb, mIU/l | ||||
| At inclusion | 7.4 (1.0–29.8) | 4.6 (1.3–40.0) | n.s. | <1.0 |
| At 6 weeks | 4.8 (1.0–40.0) | 4.4 (1.0–40.0) | n.s. | |
| At 18 weeks | 2.1 (1.0–31.1) | 1.2 (1.0–40.0) | n.s. | |
| At 36 weeks | 1.0 (1.0–8.5) | 1.0 (1.0–40.0) | n.s. | |
| TPO Ab, kIU/l | ||||
| At inclusion | 80 (10–1,385) | 198 (10–3,740) | n.s. | <35 |
| At 6 weeks | 41 (10–1,115) | 218 (10–4,840) | n.s. | |
| At 18 weeks | 22 (10–873) | 81 (10–3,720) | n.s. | |
| At 36 weeks | 23 (10–610) | 59 (10–2,190) | n.s. | |
Values represent medians with ranges in parentheses, unless otherwise stated. The Mann-Whitney U test was used for comparison between the PT and the ST groups. n.s. = Not significant.