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Observational epidemiological surveys (WG 3) page 72
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4.5 Vitamin E
4.5.1 Cataract (Table 41).
Five studies based on plasma vitamin E level found that a level higher than 30 µmol/L
reduced cataract risk by about 50 percent. These studies did not correlate with the amount of
vitamin E intake since four among seven studies found no effect whereas in one of the two
other studies, the effect was not significant. Lower risks of cataract extraction (0R = 0.5,
P