A study appearing in Cancer Research (2009 May 1;69(9):3833-41) looked at relationship between vitamin E levels and prostate cancer survival. The subjects of the study were taking part in the ATBC study (α-Tocopherol, β-Carotene Cancer Prevention Study). In the study, 1,891 men were diagnosed with prostate cancer, with 395 dying of the disease during the course of the study. It was found that those with the highest levels of α-tocopherol (vitamin E) had the greatest chance of surviving the disease. Those in the highest quintile (the 20% with the highest vitamin E levels) had a 49% lower risk of mortality when compared to the patients with the lowest levels of vitamin E.