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Table 2 Iron intake at mid-pregnancy according to intake of supplements and total iron intake levels at mid-pregnancy 1

From: Maternal iron intake at mid-pregnancy is associated with reduced fetal growth: results from Mothers and Children’s Environmental Health (MOCEH) study

 

All subjects (n = 337)

Supplement users (n = 97)

Non-supplement users (n = 240)

 

n (%)

Mean ± SD

n(%)

Mean ± SD

n(%)

Mean ± SD

Food,3 mg

 

12.5 ± 3.9

 

13.0 ± 3.9

 

12.4 ± 3.8

Supplements,4 mg

 

18.4 ± 38.8

 

63.8 ± 48.3

 

-

Total iron intake5, mg

 

30.9 ± 39.2

 

76.9 ± 48.5a2

 

12.4 ± 3.8b

 < 24

256 (76.0)

12.6 ± 3.9

18 (18.6)

17.9 ± 4.12a

238 (99.2)

12.2 ± 3.6b

 24 ~ < 45

18 (5.3)

33.9 ± 6.2

16 (16.5)

34.8 ± 5.9a

2 (0.8)

26.8 ± 3.5a

 ≥ 45

63 (18.7)

104.4 ± 37.4

63 (64.9)

104.4 ± 37.4

0

 

 1st tertile (< 11.49)

112 (33.3)

9.3 ± 1.7

1 (1.0)

-

111 (46.3)

9.2 ± 1.7

 2nd tertile (11.49 ~ 17.04)

113 (33.5)

14.0 ± 1.6

8 (8.3)

15.1 ± 1.7a

105 (43.8)

13.9 ± 1.5b

 3rd tertile (>17.04)

112 (33.2)

69.7 ± 48.7

88 (90.7)

83.2 ± 46.4a

24 (10.0)

20.2 ± 3.0b

  1. 1 Values are mean ± SD or n (%).
  2. 2 Significantly different by student’s t-test; Values with different superscript letters within a row are significantly different between supplement uses and non-supplement users (P < 0.05).
  3. 3 Iron intake from food sources only.
  4. 4 Iron intake from supplement sources only.
  5. 5 Total iron intake from both food and supplement sources.