Table 1.

Baseline characteristics of the 86 women followed until delivery

	Iodine-supplemented group	Control group
Subjects	32	54
Age, years	28 (21–37)	27 (18–39)
BMI, kg/m2	21.9 (17.9–30.8)	22.3 (16.0–39.5)
Term at first visit (WA)	10.0 (7–12)	10.0 (7.0–12)
Parity	0 (0–2)	0 (0–4)
Smokers at the visit, %	25.8	27.8
Thyroid volume, ml	10.1 (5.3–16.7)	9.5 (5.4–18)
Initial UIE, µg/l	111 (28–399)	103 (14–355)
Initial FT4, pmol/l	14.1 (12–17.2)	14.8 (12–18.5)
Initial TSH, mIU/l	1.2 (0.1–2.4)	1.2 (0.2–2.4)
FT3, pmol/l	5.1 (3.8–6.7)	5.0 (4.1–6.2)
Tg, µg/l	17 (2.4–45.1)	17.5 (1.3–84.1)
TT4, nmol/l	116.7 (73.3–162)	111.2 (71.5–157.3)
TBG, mg/l	27.4 (19.5–50)	26.3 (12.8–48.9)

Data are presented as median and range. No differences were observed between the 2 groups.