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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