Beydoun May A, Fanelli-Kuczmarski Marie T, Allen Allyssa, Beydoun Hind A, Popkin Barry M, Evans Michele K, Zonderman Alan B
Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Intramural Research Program, NIA/NIH/IRP, Baltimore, Maryland, United States of America.
Department of Behavioral Health and Nutrition, University of Delaware, Newark, Delaware, United States of America.
PLoS One. 2015 Nov 4;10(11):e0140905. doi: 10.1371/journal.pone.0140905. eCollection 2015.
The association between monetary value of the diet (MVD, $/day) with dietary quality was examined using a large sample of urban US adults, differentially by socio-demographic factors.
This was a cross-sectional study of 2,111 participants, aged 30-64y, using data from the Healthy Aging in Neighborhoods of Diversity across the Life Span Study. Dietary quality indices included Healthy Eating Index-2010 (HEI-2010) and Mean Adequacy Ratio (MAR), (two 24-hr recalls). A national food price database was used to estimate MVD. Multiple linear/logistic regression analyses were conducted stratifying separately by sex, race and poverty status.
Women had significantly higher HEI-2010 scores than men (43.35 vs 41.57 out of 100, respectively), whereas MAR scores were higher for men (76.8 vs 69.9, out of 100), reflecting energy intake gender differentials. Importantly, a $3/day higher MVD (IQR: $3.70/d (Q1) to $6.62/d (Q4)) was associated with a 4.98±0.35 higher total HEI-2010 and a 3.88±0.37 higher MAR score, after energy-adjustment and control for key confounders. For HEI-2010 and MAR, stronger associations were observed among participants above poverty and among women, whilethe MVD vs. HEI-2010 association was additionally stronger among Whites. Sex and poverty status differentials were observed for many MAR and some HEI-2010 components.
Despite positive associations between measures of dietary quality and MVD, particularly above poverty and among women, approaching compliance with the Dietary Guidelines (80 or more for HEI-2010) requires a substantially higher MVD. Thus, nutrition education may further improve people's decision-making regarding food venues and dietary choices.
使用大量美国城市成年人样本，按社会人口学因素进行区分，研究饮食货币价值（MVD，美元/天）与饮食质量之间的关联。
这是一项对2111名年龄在30 - 64岁参与者的横断面研究，使用了来自“全生命周期不同社区健康老龄化研究”的数据。饮食质量指标包括健康饮食指数 - 2010（HEI - 2010）和平均充足率（MAR）（两次24小时回忆法）。使用国家食品价格数据库来估计MVD。分别按性别、种族和贫困状况进行分层，进行多元线性/逻辑回归分析。
女性的HEI - 2010得分显著高于男性（分别为100分中的43.35分和41.57分），而男性的MAR得分更高（100分中的76.8分和69.9分），反映了能量摄入的性别差异。重要的是，在进行能量调整和控制关键混杂因素后，MVD每增加3美元/天（四分位间距：3.70美元/天（第一四分位数）至6.62美元/天（第四四分位数）），总HEI - 2010得分会提高4.98±0.35，MAR得分会提高3.88±0.37。对于HEI - 2010和MAR，在贫困线以上的参与者以及女性中观察到更强的关联，而MVD与HEI - 2010之间的关联在白人中更强。在许多MAR和一些HEI - 2010成分中观察到了性别和贫困状况差异。
尽管饮食质量指标与MVD之间存在正相关，特别是在贫困线以上人群和女性中，但要接近符合饮食指南（HEI - 2010达到80分或更高）需要显著更高的MVD。因此，营养教育可能会进一步改善人们在食物场所和饮食选择方面的决策。
