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Table 6 Serum concentration of TSH, FT4, and Tg in different UIC groups

From: Evaluation of median urinary iodine concentration cut-off for defining iodine deficiency in pregnant women after a long term USI in China

UIC

group

N

FT3

(pmol/L)

FT4

(pmol/L)

TSH

(mIU/L)

TG

(μg/L)

SI

(μg/L)

UIC(μg/L)

< 100

96(41.0%)

4.01 (2.88–5.03)

13.64 (10.05–18.53)

1.39 (0.06–3.29)

9.97 (8.85)

71.5 (45.25–111.88)

77.91 (32.02–98.97)

100–109

30(12.9%)

4.11 (3.34–7.02)

13.64 (10.18–24.98)

1.34 (0.01–2.63)

8.32 (5.64)

71.5 (49–118)

104.07 (100.68–110.34)

110–149

49(20.9%)

3.99 (3.21–5.07)

12.86 (9.35–16.67)

1.33 (0.14–3.59)

9.59 (8.80)

68 (44–101.75)

123 (111–149.24)

150–249

47(20.1%)

4.00 (3.21–5.25)

13.06 (9.08–17.60)

1.48 (0.12–2.93)

8.12 (9.91)

70 (39.8–105.8)

175.71 (150.05–237.39)

250–499

12(5.1%)

3.95 (3.29–9.87)

12.55 (11.04–22.14)

1.55 (0.01–2.88)

7.73 (3.85)*

78 (63–123)*

304.29 (259.00–471)

  1. *P values represent the median level of this group compared with the 150–249 group