Table 6 Comparison of the vitamin E status between Wuhan in central China and other countries
Reference | Location | No | Age | Definition of deficiency | % Deficiency | Median or mean of vitamin E (μmol/L) | Median or mean of vitamin E/TC (mmol/mol) |
|---|---|---|---|---|---|---|---|
This study, 2020 | Wuhan, central China | 846 | 18–93 | Serum α-tocopherol  ≤ 12.0 μmol/L (I) OR  < 11.6 (II) OR serum α-tocopherol: cholesterol  < 2.5 mmol/mol (III) OR α-tocopherol:(cholesterol + triacylglycerols) < 1.59 mmol/mol (IV) | 0.47(I) 0.24(II) 0.47(III) 0.35(IV) | 27.40 | 6.20 |
Péter et al., 2016 [18] | Global | 132 studies | NA | Serum α-tocopherol  ≤ 12.0 μmol/L | 13 | 22.1 | NA |
Oldewage-Theron et al., 2009 [34] | Sharpeville, South Africa | 235 | 60–93 yr | Serum α-tocopherol  < 2.8 μmol/L (I) OR  < 3.7 μmol/L (II) | 20.9 (I) 16.2 (II) | 4.8 | NA |
Assantachai et al.,2007 [35] | Thailand | 2336 |  ≥ 60 yr | Plasma α-tocopherol  < 14 μmol/L | 55.5 | NA | NA |
Ford et al.,2006 [36] | US | 4087 | ≥ 20 yr | Serum α-tocopherol  < 11.6 μmol/L | 0.50 | 27.39 | 4.93 |
Obeid et al., 2006 [37] | Beirut, Lebanon | 857 | 25–64 yr | Plasma α-tocopherol  < 5.8 μmol/L (I) OR  < 11.6 (II) OR plasma α-tocopherol: cholesterol  < 2.5 μmol/mmol (III) | 0.7 (I) 3.7 (II) 4.1 (III) | 24.5 | 4.67 |
Gouado et al., 2005 [26] | Northern Cameroon | 81 | 3–61 yr | Serum α-tocopherol  < 5.8 μmol/L (I) OR  < 11.6 μmol/L (II) | 12.3 (I) 33.3 (II) | 12.2 | NA |
Kang et al., 2004 [38] | Taiwan | 1841 |  ≥ 19 yr | Serum α-tocopherol  < 11.6 μmol/L | 7.2 | 20.0 | NA |