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Table 3 The 95% Reference Intervals of 11 Minerals in Different Age-based Groups

From: Determination of 11 minerals in children using inductively coupled plasma mass spectrometry

Element

<  1 year old(n = 160)

1–3 years old(n = 453)

3–6 years old(n = 477)

6–12 years old(n = 909)

12-15 years old(n = 218)

F/χ2

P

Median

[P2.5,P97.5]

Median

[P2.5,P97.5]

Median

[P2.5,P97.5]

Median

[P2.5,P97.5]

Median

[P2.5,P97.5]

Ca

96.80

[86.03,108.96]

93.60

[83.73,104.90]

91.80

[81.10,102.12]

90.60

[78.98,102.33]

90.85

[81.00,101.34]

56.315

< 0.001

Fe

0.79

[0.30,1.80]

0.99

[0.37,2.24]

1.05

[0.40,2.06]

1.09

[0.46,1.99]

1.08

[0.48,2.29]

84.367

< 0.001

Zn

713.50

[492.15,1149.00]

748.00

[501.35,1050.00]

797.50

[523.93,1151.50]

796.00

[521.25,1092.50]

807.00

[543.45,1101.00]

10.981

< 0.001

Mg

21.25

[17.10,25.60]

20.50

[16.40,24.57]

20.10

[15.85,24.02]

19.80

[16.15,23.70]

20.20

[16.10,23.75]

19.939

< 0.001

Cu

864.50

[602.28,1299.75]

1060.00

[733.65,1596.75]

1100.00

[730.75,1600.00]

1030.00

[677.50,1460.00]

860.50

[607.60,1325.25]

260.176

< 0.001

Mn

0.48

[0.00,1.63]

0.43

[0.00,1.22]

0.38

[0.00,1.36]

0.39

[0.00,1.37]

0.36

[0.00,1.25]

20.140

< 0.001

Se

71.30

[35.43,119.00]

81.50

[48.95,118.93]

77.50

[47.32,112.67]

79.66

[50.87,111.00]

76.70

[55.06,116.20]

15.693

0.188

Hg

0.24

[0.00,0.70]

0.32

[0.01,1.08]

0.28

[0.05,0.86]

0.26

[0.05,0.74]

0.27

[0.05,0.68]

24.125

< 0.001

Ni

0.76

[0.24,2.61]

1.05

[0.16,2.51]

0.92

[0.13,2.31]

0.90

[0.15,2.31]

0.84

[0.10,2.53]

10.675

0.030

Co

0.27

[0.06,0.60]

0.31

[0.06,0.80]

0.33

[0.06,0.68]

0.31

[0.08,0.75]

0.32

[0.03,0.68]

24.755

< 0.001

Li

1.15

[0.00,4.73]

1.29

[0.00,4.38]

1.20

[0.02,4.08]

1.11

[0.00,4.46]

1.02

[0.00,3.86]

5.853

0.210