Ethnicity is an independent correlate of biomarkers of micronutrient intake and status in American adults
Ethnicity is an independent correlate of biomarkers of micronutrient intake and status in American adults
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DOI：
10.1093/jn/137.11.2456
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发表时间：
2007-11-01
影响因子：
4.2
通讯作者：
Graubard, Barry I.
中科院分区：
文献类型：
--
作者：
Kant, Ashima K.;Graubard, Barry I.
饮食可能是调节公认的种族和社会经济健康差异的因素之一。营养暴露的生物标志物避免依赖有偏见的饮食自我报告，并允许客观评估与种族和社会经济地位相关的饮食差异。我们使用来自 NHANES III (n = 13113) 和 NHANES 1999-2002 (n = 7246) 的数据来研究美国成年人中对公共健康具有重要性的营养素（维生素 C、D 和 E、叶酸、类胡萝卜素、硒和铁蛋白）血清浓度的种族、教育和收入差异。使用多元回归方法来调整协变量和复杂的调查设计来检查这些关联。根据教育程度和收入进行调整后，非白人的血清 β-隐黄质和叶黄素 + 玉米黄质浓度高于非西班牙裔白人 (P < 0.0001)。相对于非西班牙裔白人，非西班牙裔黑人的血清维生素 C 和 D、叶酸和硒浓度较低。墨西哥裔美国人的生物标志物特征（除了女性的维生素 D、叶酸和铁蛋白）与非西班牙裔白人相当或更好。种族与平均生物标志物浓度的关联通常与这些与处于边缘浓度风险的人口比例的关联平行。教育程度是几种类胡萝卜素和维生素 C 血清浓度的独立阳性预测因素 (P
Diet may be among the factors that mediate the acknowledged ethnicity and socioeconomic differentials in health. Biomarkers of nutritional exposure avoid reliance on biased self-reports of diet and allow an objective assessment of dietary differentials associated with ethnicity and socioeconomic position. We used data from the NHANES III (n = 13113) and NHANES 1999-2002 (n = 7246) to examine ethnic, education, and income differentials in serum concentrations of nutrients of putative public health importance (vitamins C, D, and E, folate, carotenoids, selenium, and ferritin) in U.S. adults. Multiple regression methods were used to adjust for covariates and complex survey design to examine these associations. The serum beta-cryptoxanthin and lutein + zeaxanthin concentrations, adjusted for education and income, were higher in non-whites (P < 0.0001) relative to non-Hispanic whites. Non-Hispanic blacks had lower serum vitamins C and D, folate, and selenium concentrations relative to non-Hispanic-whites. The biomarker profile (except vitamin D, and folate and ferritin in women) of Mexican-Americans was comparable or better relative to non-Hispanic-whites. Ethnicity associations with mean biomarker concentrations generally paralleled these associations with the proportion of the population at risk of marginal concentrations. Education was an independent positive predictor of serum concentrations of several carotenoids and vitamin C (P