不良的饮食质量是与饮食相关的慢性疾病的危险因素，并且不理想的营养模式通常在生命历程的早期就开始了。虽然幼儿、青少年和中老年人的饮食摄入量已经很确定，但对新兴成年人的了解却少之又少，他们代表着生命中的一个独特时间点，因为他们在食物环境、自主权、财务方面正在经历重大变化以及照顾者和父母的参与。旨在通过健康饮食指数 (HEI) 评估，根据参加 2015-2018 年全国调查的美国新兴成年人（18-23 岁）的人口、社会经济和健康相关特征，检查饮食质量。健康与营养检查调查 (NHANES)。NHANES 数据通过家庭访谈和 2 次 24 小时饮食回忆 (24HR) 收集。使用多变量国家癌症研究所方法来近似计算 24 小时的日常饮食摄入量，以计算平均 HEI-2015 总体和组成分数（范围 0-100，分数越高表明饮食质量越高）。美国新兴成年人的总体饮食质量 [HEI-2015 ：50.3±1.3]显着低于其他美国成年人（≥24岁）[HEI-2015：56.3±0.5； p<0.0001]，差异主要是由于整个水果、蔬菜和全谷物的摄入量较低，以及钠、精制谷物和饱和脂肪的摄入量较高。除添加糖外，按性别、粮食安全、家庭收入和粮食援助计划参与程度划分的人口亚组的 HEI-2015 分数几乎没有差异；与同行相比，女性、粮食不安全和粮食援助计划参与者的添加糖摄入量分别显着较高。美国新兴成年人的饮食质量较差，并且在所有人口亚组中持续存在，这表明迫切需要量身定制的公共卫生干预措施改善该人群的饮食质量。未来的研究将调查新兴成年人在多大程度上优先考虑健康行为，并探索其他指标来识别营养脆弱的亚群，这可能会对识别这一生命阶段之间的差异产生影响。版权所有 © 2024 作者。由爱思唯尔公司出版。保留所有权利。

Poor dietary quality is a risk factor for diet-related chronic disease and suboptimal nutritional patterns often begin early in the life course. While the dietary intakes of young children, adolescents, and middle-aged and older adults are well established, much less is known about emerging adults, who represent a unique timepoint in life, as they are undergoing significant changes in food environments, autonomy, finances, and caregiver and parental involvement.To examine dietary quality, as assessed via the Healthy Eating Index (HEI), by demographic, socioeconomic, and health-related characteristics among U.S. emerging adults (18-23y) who participated in the 2015-2018 National Health and Nutrition Examination Survey (NHANES).NHANES data were collected via a household interview and 2 24-hour dietary recalls (24HR). Usual dietary intakes from the 24HRs were approximated using the multivariate National Cancer Institute Method to compute mean HEI-2015 overall and component scores (range 0-100, higher scores indicating higher dietary quality).Overall dietary quality among U.S. emerging adults [HEI-2015: 50.3±1.3] was significantly lower than other U.S. adults (≥24y) [HEI-2015: 56.3±0.5; p<0.0001], with differences primarily driven by lower intakes of whole fruit, vegetables, and whole grains, and higher intakes of sodium, refined grains, and saturated fat. Few differences in HEI-2015 scores were noted across population subgroups by sex, food security, family income, and food assistance program participation, except for added sugar; intakes of added sugar were significantly higher among women, food insecure, and food assistance program participants as compared to their counterparts, respectively.Dietary quality is poor among U.S. emerging adults and persists across all population subgroups, suggesting a significant need for tailored public health interventions to improve dietary quality among this population. Future research investigating to what extent emerging adults prioritize healthful behaviors and exploring other indicators for identifying nutritionally vulnerable subgroups may be impactful for identifying disparities among this life stage.Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.