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Table 2 Distributions of maternal and infant UIC

From: Maternal iodine status during lactation and infant weight and length in Henan Province, China

Distribution of Maternal UIC

Distribution of Infant UIC (n (%))

< 50 μg/L

50–99 μg/L

100–199 μg/L

200–299 μg/L

> 299 μg/L

< 50 μg/L

3(7.5)

6(15.0)

9(22.5)

10(25.0)

12(30.0)

50–99 μg/L

3(3.0)

10(9.9)

27(26.7)

33(32.7)

28(27.7)

100–199 μg/L

6(2.1)

16(5.6)

89(30.9)

80(27.8)

97(33.7)

200–299 μg/L

3(1.7)

2(1.2)

42(24.4)

55(32.0)

70(40.7)

≥ 300 μg/L

1(0.7)

4(2.7)

31(21.2)

40(27.4)

70(47.9)

  1. Maternal UIC was positively correlated with infant UIC (r = 0.203, P < 0.001)
  2. UIC urinary iodine concentration