Composite Dietary Antioxidant Index is negatively associated with olfactory dysfunction among adults in the United States: A cross-sectional study

IF 3.4 3区医学 Q2 NUTRITION & DIETETICS

Nutrition Research Pub Date : 2024-02-09 DOI:10.1016/j.nutres.2024.02.002

Tingfeng Zhou , Shihao Chen , Jiesheng Mao , Yijiao Fei , Xinru Yu , Liang Han

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Abstract

The Comprehensive Dietary Antioxidant Index (CDAI) plays a crucial role as an indicator of diets rich in antioxidants. Despite its importance, the clinical significance of CDAI concerning olfactory dysfunction (OD) remains unknown. Our study aims to investigate whether there is an association between CDAI and OD within the general adult population aged 20 years and older. We hypothesized a negative correlation between CDAI and OD in the general adult population. A cross-sectional study used data from the National Health and Nutrition Examination Survey (n = 1624; >20 y of age). A multivariate logistic regression model examined the connection between CDAI and OD. Smooth-fitted curves were used to investigate the nonlinear relationship between CDAI and OD. A threshold effect analysis was then used to pinpoint the inflection point. Subgroup analyses were conducted based on gender and age. Multivariate regression analysis revealed a negative correlation between CDAI and OD. After controlling for variables, the risk of OD in the highest quartile of CDAI was significantly lower than in the lowest quartile (Q1) (odds ratio = 0.64; 95% confidence interval, 0.44–0.92; P = .0148). Stratified analysis indicated a significant association between CDAI and OD in individuals younger than age 60 years and male. This research suggests that increasing the co-ingestion of antioxidants within a moderate range can reduce the incidence of OD.

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美国成年人膳食抗氧化剂综合指数与嗅觉功能障碍呈负相关：一项横断面研究

膳食抗氧化剂综合指数（CDAI）是衡量膳食是否富含抗氧化剂的重要指标。尽管CDAI很重要，但它对嗅觉功能障碍（OD）的临床意义仍不得而知。我们的研究旨在调查在 20 岁及以上的普通成年人群中，CDAI 与嗅觉功能障碍之间是否存在关联。我们假设在普通成年人群中，CDAI 与 OD 之间存在负相关。这项横断面研究使用了全国健康与营养调查的数据（n = 1624; >20岁）。多变量逻辑回归模型检验了CDAI与OD之间的联系。平滑拟合曲线用于研究 CDAI 和 OD 之间的非线性关系。然后使用阈值效应分析来确定拐点。根据性别和年龄进行了分组分析。多变量回归分析显示，CDAI 和 OD 之间呈负相关。控制变量后，CDAI 最高四分位数的 OD 风险明显低于最低四分位数（Q1）（几率比 = 0.64；95% 置信区间，0.44-0.92；P = .0148）。分层分析表明，CDAI 与 60 岁以下男性的 OD 之间存在明显关联。这项研究表明，在适度范围内增加共同摄入抗氧化剂可降低 OD 的发病率。

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来源期刊

Nutrition Research 医学-营养学

CiteScore

7.60

自引率

2.20%

发文量

107

审稿时长

58 days

期刊介绍： Nutrition Research publishes original research articles, communications, and reviews on basic and applied nutrition. The mission of Nutrition Research is to serve as the journal for global communication of nutrition and life sciences research on diet and health. The field of nutrition sciences includes, but is not limited to, the study of nutrients during growth, reproduction, aging, health, and disease. Articles covering basic and applied research on all aspects of nutrition sciences are encouraged, including: nutritional biochemistry and metabolism; metabolomics, nutrient gene interactions; nutrient requirements for health; nutrition and disease; digestion and absorption; nutritional anthropology; epidemiology; the influence of socioeconomic and cultural factors on nutrition of the individual and the community; the impact of nutrient intake on disease response and behavior; the consequences of nutritional deficiency on growth and development, endocrine and nervous systems, and immunity; nutrition and gut microbiota; food intolerance and allergy; nutrient drug interactions; nutrition and aging; nutrition and cancer; obesity; diabetes; and intervention programs.