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Table 5 95% Reference Intervals of 11 Minerals in Different Seasons

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

Element Spring(n = 525) Summer(n = 517) Autumn(n = 619) Winter(n = 554) χ2 P
Median [P2.5,P97.5] Median [P2.5,P97.5] Median [P2.5,P97.5] Median [P2.5,P97.5]
Ca 91.03 [81.20,102.26] 91.60 [82.80,102.00] 91.60 [78.85,103.57] 93.80 [79.88,105.03] 52.398 < 0.001
Fe 1.03 [0.40,1.91] 1.02 [0.43,2.01] 0.99 [0.35,2.32] 1.12 [0.44,2.05] 29.710 < 0.001
Zn 774.00 [516.20,1048.50] 777.00 [498.65,1110.00] 771.00 [513.50,1060.00] 814.00 [559.25,1111.25] 28.317 < 0.001
Mg 20.50 [16.32,24.90] 20.30 [16.10,24.30] 20.10 [16.25,23.80] 20.00 [16.40,23.91] 27.912 < 0.001
Cu 1020.00 [651.30,1510.00] 1060.00 [668.55,1500.00] 1030.00 [670.53,1566.85] 974.00 [656.75,1522.50] 29.449 < 0.001
Mn 0.47 [0.00,1.58] 0.34 [0.00,1.12] 0.39 [0.01,1.06] 0.40 [0.00,1.01] 55.970 < 0.001
Se 82.50 [47.74,117.75] 75.90 [47.95,107.05] 76.20 [42.41,115.20] 81.40 [48.05,118.25] 73.693 < 0.001
Hg 0.32 [0.03,0.89] 0.26 [0.07,0.81] 0.19 [0.02,0.71] 0.38 [0.07,0.97] 239.329 < 0.001
Ni 1.42 [0.26,2.60] 0.76 [0.11,2.34] 0.51 [0.10,1.57] 1.08 [0.21,2.52] 510.432 < 0.001
Co 0.34 [0.06,0.61] 0.32 [0.03,0.84] 0.28 [0.11,0.73] 0.32 [0.07,0.64] 22.028 < 0.001
Li 0.72 [0.00,3.08] 1.45 [0.12,3.99] 1.41 [0.54,4.89] 1.12 [0.18,4.33] 294.421 < 0.001