Positive Attitude toward Healthy Eating Predicts Higher Diet Quality at All Cost Levels of Supermarkets
Positive Attitude toward Healthy Eating Predicts Higher Diet Quality at All Cost Levels of Supermarkets
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DOI：
10.1016/j.jand.2013.06.006
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发表时间：
2014-02-01
影响因子：
4.8
通讯作者：
Drewnowski, Adam
中科院分区：
文献类型：
--
作者：
Aggarwal, Anju;Monsivais, Pablo;Drewnowski, Adam
在廉价超市购物与较高的肥胖率有关。这项研究调查了低成本、中等成本和高成本超市的购物者对健康饮食的态度是否与饮食质量独立相关。数据的社会经济地位（SES），对健康饮食的态度，和超市的选择使用电话调查收集了一个有代表性的样本的成年居民金县，WA。饮食摄入数据基于食物频率问卷。根据一篮子100种常见食品，13家连锁超市被分为低、中、高三大类。饮食质量指标包括能量密度、平均充足率和水果和蔬菜的总份量。分析样本包括963名成年人。具有稳健标准误差的多变量回归检验了饮食质量、超市类型、态度和社会经济地位之间的关系。在价格较高的超市购物与高质量的饮食有关。在调整了社会经济地位后，这些联系仍然存在，但在考虑了态度措施后，这些联系被消除了。对健康饮食持积极态度的超市购物者同样拥有更高质量的饮食，即使他们在低成本、中等成本或高成本的超市购物，独立于SES和其他协变量。这些发现意味着，只要消费者重视良好的营养，在低成本超市购物并不妨碍他们获得高质量的饮食。在超市中推广营养教育策略，特别是那些面向低收入群体的超市，可以帮助改善饮食质量。
Shopping at low-cost supermarkets has been associated with higher obesity rates. This study examined whether attitudes toward healthy eating are independently associated with diet quality among shoppers at low-cost, medium-cost, and high-cost supermarkets. Data on socioeconomic status (SES), attitudes toward healthy eating, and supermarket choice were collected using a telephone survey of a representative sample of adult residents of King County, WA. Dietary intake data were based on a food frequency questionnaire. Thirteen supermarket chains were stratified into three categories: low, medium, and high cost, based on a market basket of 100 commonly eaten foods. Diet-quality measures were energy density, mean adequacy ratio, and total servings of fruits and vegetables. The analytical sample consisted of 963 adults. Multivariable regressions with robust standard error examined relations between diet quality, supermarket type, attitudes, and SES. Shopping at higher-cost supermarkets was associated with higher-quality diets. These associations persisted after adjusting for SES, but were eliminated after taking attitudinal measures into account. Supermarket shoppers with positive attitudes toward healthy eating had equally higher-quality diets, even if they shopped at low-, medium-, or high-cost supermarkets, independent of SES and other covariates. These findings imply that shopping at low-cost supermarkets does not prevent consumers from having high-quality diets, as long as they attach importance to good nutrition. Promoting nutrition-education strategies among supermarkets, particularly those catering to low-income groups, can help to improve diet quality.