五种地中海饮食指数在巴西成年人和老年人中的比较和协同有效性：基于人群的研究（2015 年 ISA-营养）的数据。

Comparison and convergent validity of five Mediterranean dietary indexes applied to Brazilian adults and older adults: data from a population-based study (2015 ISA-Nutrition).

机构信息

Department of Nutrition, Public Health School, University of Sao Paulo, São Paulo, Brazil.

School of Feeding Coordination, São Paulo City Hall, São Paulo, Brazil.

出版信息

J Nutr Sci. 2023 Jan 26;12:e12. doi: 10.1017/jns.2022.123. eCollection 2023.

DOI:10.1017/jns.2022.123

PMID:36843964

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9947597/

Abstract

Different dietary indexes are proposed to investigate adherence to the Mediterranean diet (MD). However, they are based on different methodologies, and limited research has compared them to each other, particularly in non-Mediterranean populations. We aimed to compare five indexes intended to measure adherence to the MD. The sample was composed of adults and older adults ( 1187) from 2015 ISA-Nutrition, a cross-sectional population-based study in São Paulo, SP, Brazil. Dietary data obtained through two 24-h dietary recalls (24HDR) from which the Mediterranean diet scale (MDS), Mediterranean diet Score (MedDietscore), Mediterranean dietary pattern (MDP), Mediterranean Adequacy Index (MAI) and Mediterranean-Style Dietary Pattern Score (MSDPS) were calculated. The correlations and agreements between them were analysed by Spearman's correlation and linearly weighted Cohen's Kappa coefficients, respectively. Confirmatory factor analyses (CFAs) were applied to investigate their convergent validity. The highest correlations were found between MDP and MAI ( = 0⋅76; 95% CI 0⋅74-0⋅79) and between MDP and MDS ( = 0⋅72; 95% CI 0⋅69-0⋅75). The greatest agreements observed were moderate, between MDP . MAI ( = 0⋅57, < 0⋅001) and MDP . MDS ( = 0⋅48, < 0⋅001). The goodness-of-fit of CFA for MedDietscore (RMSEA = 0⋅033, 90% CI 0⋅02-0⋅042; SRMR = 0⋅042) and MSDPS (RMSEA = 0⋅028, 90% CI 0⋅019-0⋅037; SRMR = 0⋅031) had acceptable values for absolute fit indices. Vegetables, olive oil, MUFA:SFA ratio and cereals with legumes were more relevant to characterise the MD (factor loadings ≥0⋅50). The MDS, MAI and MDP classified the population similarly, but the MedDietscore showed better performances in evaluating adherence to the MD. These results provided guidance for the most appropriate Mediterranean dietary index to be applied in non-Mediterranean populations.

摘要

不同的膳食指数被提出用于研究对地中海饮食（MD）的依从性。然而，它们基于不同的方法，并且很少有研究将它们彼此进行比较，特别是在非地中海人群中。我们旨在比较旨在衡量 MD 依从性的五个指数。该样本由 2015 年 ISA-Nutrition 的成年人和老年人（1187 人）组成，这是巴西圣保罗州的一项基于人群的横断面研究。通过两次 24 小时膳食回忆（24HDR）获得饮食数据，从中计算出地中海饮食量表（MDS）、地中海饮食评分（MedDietscore）、地中海饮食模式（MDP）、地中海充足指数（MAI）和地中海饮食模式评分（MSDPS）。通过 Spearman 相关系数和线性加权 Cohen 的 Kappa 系数分别分析它们之间的相关性和一致性。应用验证性因子分析（CFAs）来研究它们的收敛有效性。发现 MDP 和 MAI 之间的相关性最高（=0.76；95%CI 0.74-0.79），MDP 和 MDS 之间的相关性最高（=0.72；95%CI 0.69-0.75）。观察到的最大一致性为中度，介于 MDP 与 MAI 之间（=0.57，<0.001）和 MDP 与 MDS 之间（=0.48，<0.001）。MedDietscore（RMSEA=0.033，90%CI 0.02-0.042；SRMR=0.042）和 MSDPS（RMSEA=0.028，90%CI 0.019-0.037；SRMR=0.031）的 CFA 良好拟合值对于绝对拟合指数来说是可接受的。蔬菜、橄榄油、MUFA:SFA 比值和含豆类的谷物与 MD 的相关性更强（因子负荷≥0.50）。MDS、MAI 和 MDP 对人群的分类相似，但 MedDietscore 在评估 MD 依从性方面表现更好。这些结果为在非地中海人群中应用最合适的地中海饮食指数提供了指导。