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Table 4 Comparison of selected nutrient intake by characteristics of pregnant women in rural Shaanxi China 2004

From: Assessment of dietary intake among pregnant women in a rural area of western China

  

Maternal BMI*

Household wealth

  

<18.5 n = 161

> = 18.5 n = 1213

p†

Poorest n = 364

Middle n = 579

Richest n = 477

p‡

Energy (kcal)

Median

2108.7

2250.7

0.015

2200.5

2214.5

2263.1

0.111

 

p5,

p95¶

1288.0, 3176.4

1305.4, 3644.6

 

1263.4, 3546.8

1292.8, 3726.5

1366.4, 3603.1

 

Protein (g)

Median

55.7

61.3

0.002

59.2

59.7

62.3

0.151

 

p5,

p95¶

33.0, 91.7

33.5, 105.0

 

35.2, 101.7

33.1, 103.1

33.5, 105.75

 

Calcium (mg)

Median

424.1

416.8

0.539

384.1

398.9

447.4

<0.001

 

p5,

p95¶

193.5, 781.3

189.3, 856.9

 

183.9, 825.7

180.6, 849.8

203.1, 867.7

 

Iron (mg)

Median

20.6

22.3

0.028

21.6

21.7

22.6

0.016

 

p5,

p95¶

12.4, 33.8

12.5, 38.6

 

12.2, 36.3

12.0, 38.4

13.2, 38.2

 

Zinc (mg)

Median

7.98

8.60

0.022

8.17

8.50

8.77

0.012

 

p5,

p95¶

4.59, 12.34

4.81, 14.72

 

4.62, 13.91

4.62, 14.70

4.90, 14.38

 

Riboflavin (mg)

Median

0.84

0.88

0.078

0.82

0.88

0.92

0.002

 

p5,

p95¶

0.41, 1.42

0.47, 1.59

 

0.44, 1.55

0.44, 1.60

0.48, 1.59

 

Vitamin C (mg)

Median

90.0

89.8

0.715

77.4

88.0

102.1

<0.001

 

p5,

p95¶

24.4, 220.6

22.2, 246.1

 

21.2, 228.1

18.6, 242.4

29.4, 260.52

 

Folate (μg)

Median

236.0

247.8

0.095

228.2

240.0

268.0

<0.001

 

p5,

p95¶

104.6, 456.4

114.4, 509.2

 

116.9, 477.9

104.0, 487.2

126.8, 519.7

 
  1. * Data missing for 46 women
  2. † Mann-Whitney U test
  3. ‡ Kruskal Wallis test
  4. ¶5th percentile – 95th percentile of nutrient intake