自我报告的饮食摄入量问卷和客观测量在住院跨部门研究中的相关性
Mary Thompson1, Emma J Stinson1, Tomás Cabeza de Baca1
1Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology & Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ 85004, USA.
Nutrients
|February 13, 2026
概括
自我报告的饮食摄入问卷显示与实际食物消费的相关性很弱. 这种不准确性在女性中尤其明显,因为她们摄入的低脂肪食物.
科学领域:
- 营养科学 营养科学
- 饮食评估 饮食评估
- 行为科学是一种行为科学.
背景情况:
- 自我报告的饮食摄入量问卷经常缺乏准确性.
- 性,饮食行为和环境等因素可能会影响报告的摄入量.
- 需要客观的测量来验证自我报告方法.
研究的目的:
- 为了比较自我报告的饮食摄入量与客观测量的自由饮食摄入量.
- 根据性别和食物组组成来评估准确度的差异.
- 评估不同人群中饮食问卷的可靠性.
主要方法:
- 利用了来自279名参与者的住院数据 (1999-2023).
- 参与者填写了三个饮食摄入问卷,分为六组 (高脂肪,低脂肪,高复杂碳水化合物,高蛋白,高简单糖) 的77种食物.
- 目标摄入量通过三天的平均百分比群体摄入量来衡量;使用性相互作用的一般线性模型进行分析.
主要成果:
- 在客观测量摄入量和问卷评分之间观察到微弱的正相关性 (r ≤ 0.25).
- 发现低脂肪/高蛋白和低脂肪/高复杂碳水化合物群体与性别之间有显著的相互作用,主要在男性中.
- 饮食问卷显示实际摄入量与摄入量之间的关联很小,特别是在女性和低脂肪食物中.
结论:
- 自我报告的饮食问卷与实际的饮食摄入量关系有限.
- 女人,尤其是低脂肪食物,在自我报告和客观测量的摄入量之间表现出更大的差异.
- 需要进一步的研究来提高饮食评估工具的准确性.
相关概念视频
Cross-Sectional Research
12.7K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.7K
Finding Volume Using Cross-Sectional Area
99
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
99
Profile Leveling and Cross Sections
1.7K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.7K
Spinal Cord: Cross-sectional Anatomy
5.0K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
5.0K
Genome-wide Association Studies-GWAS
15.8K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.8K
Dietary Connections
62.2K
In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
62.2K


