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Table 2 Age-partitioned pediatric reference intervals for vitamin E in plasma, red blood cells (RBC) and adipose tissue

From: Establishment of reference values of α-tocopherol in plasma, red blood cells and adipose tissue in healthy children to improve the management of chylomicron retention disease, a rare genetic hypocholesterolemia

Test Age (years) Samples (n) Mean Lower limit Upper limit
Plasma α-tocopherol (μmol/L) 0 - 2 48 22.1 11.8 34.2
  2 - 12 73 20 11.9 30.2
  12 - 18 35 19.8 11.6 27.6
  0 - 18 156 20.6 11.9 30
α-tocopherol/cholesterol ratio 0 - 18 113 5.27 3.3 7.1
α-tocopherol/triglycerides ratio 0 - 18 113 33.3 9.6 55.3
RBC α-tocopherol (μmol/L packed cells) 0 - 2 30 5.47 2.5 9.9
  2 - 12 37 4.67 1.7 7.8
  12 - 18 28 5.12 2.6 9.8
  0 - 18 95 4.96 2 7.8
Adipose tissue α-tocopherol (nmol/g) 0 - 2 48 291 37 597
  2 - 12 64 267 61 596
  12 - 18 32 177 58 344
  0 - 18 144 258 60 573