Siegel Karen R, McKeever Bullard Kai, Ali Mohammed K, Stein Aryeh D, Kahn Henry S, Mehta Neil K, Webb Girard Amy, Narayan K M, Imperatore Giuseppina
1Division of Diabetes Translation,Centers for Disease Control and Prevention,4770 Buford Highway,Atlanta,GA 30341,USA.
2Hubert Department of Global Health,Emory University,Atlanta,GA,USA.
Public Health Nutr. 2016 Jun;19(8):1348-57. doi: 10.1017/S1368980015002414. Epub 2015 Sep 1.
The contribution of subsidized food commodities to total food consumption is unknown. We estimated the proportion of individual energy intake from food commodities receiving the largest subsidies from 1995 to 2010 (corn, soyabeans, wheat, rice, sorghum, dairy and livestock).
Integrating information from three federal databases (MyPyramid Equivalents, Food Intakes Converted to Retail Commodities, and What We Eat in America) with data from the 2001-2006 National Health and Nutrition Examination Surveys, we computed a Subsidy Score representing the percentage of total energy intake from subsidized commodities. We examined the score's distribution and the probability of having a 'high' (≥70th percentile) v. 'low' (≤30th percentile) score, across the population and subgroups, using multivariate logistic regression.
Community-dwelling adults in the USA.
Participants (n 11 811) aged 18-64 years.
Median Subsidy Score was 56·7 % (interquartile range 47·2-65·4 %). Younger, less educated, poorer, and Mexican Americans had higher scores. After controlling for covariates, age, education and income remained independently associated with the score: compared with individuals aged 55-64 years, individuals aged 18-24 years had a 50 % higher probability of having a high score (P<0·0001). Individuals reporting less than high-school education had 21 % higher probability of having a high score than individuals reporting college completion or higher (P=0·003); individuals in the lowest tertile of income had an 11 % higher probability of having a high score compared with individuals in the highest tertile (P=0·02).
Over 50 % of energy in US diets is derived from federally subsidized commodities.
补贴食品商品对总食物消费的贡献尚不清楚。我们估计了1995年至2010年期间从获得最大补贴的食品商品（玉米、大豆、小麦、大米、高粱、乳制品和牲畜）中获取的个体能量摄入量的比例。
将来自三个联邦数据库（我的金字塔等量物、转换为零售商品的食物摄入量以及美国国民饮食调查）的信息与2001 - 2006年国家健康和营养检查调查的数据相结合，我们计算了一个补贴分数，该分数代表补贴商品中总能量摄入量的百分比。我们使用多变量逻辑回归分析了该分数在总体人群和亚组中的分布情况，以及获得“高”（≥第70百分位数）与“低”（≤第30百分位数）分数的概率。
美国社区居住的成年人。
18 - 64岁的参与者（n = 11811）。
补贴分数中位数为56.7%（四分位间距47.2 - 65.4%）。年轻人、受教育程度较低者、贫困者以及墨西哥裔美国人的分数较高。在控制协变量后，年龄、教育程度和收入仍与分数独立相关：与55 - 64岁的个体相比，18 - 24岁的个体获得高分的概率高50%（P<0.0001）。报告高中以下教育程度的个体获得高分的概率比报告大学毕业或更高学历的个体高21%（P = 0.003）；收入处于最低三分位数的个体与最高三分位数的个体相比，获得高分的概率高11%（P = 0.02）。
美国饮食中超过50%的能量来自联邦补贴商品。
