Prevalences of cholesterol-adjusted serum α-tocopherol concentrations below cut-off (5.8 μmol/mmoL) among individuals in the United States (NHANES 2003–2006) (TOTAL), stratified by reported food use (FOOD), food and supplement use (FOOD+DS) and demographic characteristics (%).

<p>^a Serum α-tocopherol (μmol/L) divided by total cholesterol (mmol/L). Cut-off value (5.8 μmol/mmol) based on American Heart Association recommendation of desirable total cholesterol level (<200 mg/dL).</p><p>^b Sample size (n = 7,920) excludes individuals: <20 years; who were pregnant or lactating; with α-tocopherol concentrations >99 percentile; or unavailable data for α-tocopherol concentration, age, sex, race/ethnicity, total cholesterol. To account for complex survey design, SAS survey procedures (surveymeans) as well as cluster, strata, and sampling weights (proportionally scaled to included sample) were used.</p><p>^c Includes multi-racial and any other Hispanic individuals</p><p>^d Based on Rao-Scott chi-square p-value</p><p>Prevalences of cholesterol-adjusted serum α-tocopherol concentrations below cut-off (5.8 μmol/mmoL) among individuals in the United States (NHANES 2003–2006) (TOTAL), stratified by reported food use (FOOD), food and supplement use (FOOD+DS) and demographic characteristics (%).