Perceived and objective diet quality in US adults: a cross-sectional analysis of the National Health and Nutrition Examination Survey (NHANES).
Perceived and objective diet quality in US adults: a cross-sectional analysis of the National Health and Nutrition Examination Survey (NHANES).
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DOI：
10.1017/s1368980014000196
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发表时间：
2014-12
影响因子：
3.2
通讯作者：
Reedy, Jill
中科院分区：
文献类型：
--
作者：
Powell-Wiley, Tiffany M.;Miller, Paige E.;Agyemang, Priscilla;Agurs-Collins, Tanya;Reedy, Jill
关键词：
控制高血压的饮食方法 (DASH) 饮食模式已被证明可以降低心脏代谢风险。人们对客观饮食质量和感知饮食质量（PDQ）之间的关系知之甚少，PDQ是适当饮食摄入的潜在社会心理障碍。我们比较了美国的 PDQ 和通过基于营养的 DASH 指数评分衡量的饮食质量。横断面研究。 2005-2006 年国家健康和营养检查调查 (NHANES) 的参与者采用 5 点李克特量表对饮食质量进行评分，并生成 PDQ 分数（低、中、高）。通过对九种目标营养素（总脂肪、饱和脂肪、蛋白质、胆固醇、纤维、钙、镁、钾和钠）分配 0、0·5 或 1 分（最佳），使用单次 24 小时饮食回忆来估计 DASH 指数得分（范围 0-9 分）。美国人口的全国代表性样本。 2005-2006 年 NHANES 中年龄≥19 岁的成年人（n 4419）。 PDQ 高的参与者 (33%) 的 DASH 指数得分（平均 3·0 (sd 0·07)）高于 PDQ 低的参与者（平均 2·5 (sd 0·06)，P < 0·001），但平均得分与中间或最佳 DASH 一致性目标不一致。与最佳 DASH 营养目标相比，PDQ 高的成年人报告的总脂肪、饱和脂肪和钠摄入量更高。具有高 υ 的人之间的差异。白人和黑人的低 PDQ 相似，但墨西哥裔美国人的 PDQ 组之间没有差异。在白人和黑人中，但在墨西哥裔美国人中，高 PDQ 可能与较高的饮食质量相关，但不一定是符合 DASH 营养目标的饮食。 PDQ 与实际饮食质量之间的这种脱节可以作为预防肥胖的目标。
The Dietary Approaches to Stop Hypertension (DASH) dietary pattern has been shown to reduce cardiometabolic risk. Little is understood about the relationship between objective diet quality and perceived diet quality (PDQ), a potential psychosocial barrier to appropriate dietary intake. We compared PDQ and diet quality measured by a nutrient-based DASH index score in the USA. Cross-sectional study. Participants in the 2005–2006 National Health and Nutrition Examination Survey (NHANES) rated diet quality on a 5-point Likert scale and PDQ scores were generated (low, medium, high). A single 24 h dietary recall was used to estimate DASH index scores (range 0–9 points) by assigning 0, 0·5 or 1 point (optimal) for nine target nutrients: total fat, saturated fat, protein, cholesterol, fibre, Ca, Mg, K and Na. Nationally representative sample of the US population. Adults aged ≥19 years in 2005–2006 NHANES (n 4419). Participants with high PDQ (33%) had higher DASH index scores (mean 3·0 (sd 0·07)) than those with low PDQ (mean 2·5 (sd 0·06), P < 0·001), but average scores did not align with targets for intermediate or optimal DASH accordance. Adults with high PDQ reported higher total fat, saturated fat and Na intakes compared with optimal DASH nutrient goals. Differences between those with high υ. low PDQ were similar for Whites and Blacks, but there was no difference between PDQ groups for Mexican Americans. Among Whites and Blacks, but not Mexican Americans, high PDQ may be associated with higher diet quality, but not necessarily a diet meeting DASH nutrient goals. This disconnect between PDQ and actual diet quality may serve as a target in obesity prevention.