Department of Nutritional Sciences, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
BMC Public Health. 2024 Oct 29;24(1):2988. doi: 10.1186/s12889-024-20484-y.
BACKGROUND/OBJECTIVES: The Planetary Health Diet Index (PHDI) was recently introduced to assess adherence to the EAT-Lance recommendations. In this study, we aimed to evaluate the relationship between PHDI and metabolic syndrome (MS).
SUBJECTS/METHODS: We used the data of 6465 participants from the PERSIAN cohort study at Mashhad University of Medical Sciences, Mashhad, Iran. Diet was assessed using a 130-item Food Frequency Questionnaire (FFQ). The PHDI comprises sixteen components and is scored between 0 and 150 points. We first assessed the validity and reliability of the PHDI for this population. We used regression logistic models to assess the relationships between PHDI and MS and its related indicators.
The average PHDI score was 52.3 ± 9. The Cronbach's alpha value was 0.53. After controlling for age and sex, the PHDI was positively related to the Diet Quality Index-International (DQI-I) and was negatively related to carbon and water footprints (p < 0.001). PHDI quartile was negatively associated with MS, hypo-HDL cholesterolemia, and abdominal obesity after controlling for confounders (P < 0.05).
The validity and reliability of the PHDI were found to be satisfactory for the Iranian population we studied. Our results showed that a higher PHDI was potentially related to a reduced likelihood of MS, hypo-HDL cholesterolemia, and abdominal obesity.
背景/目的：行星健康饮食指数（PHDI）最近被引入以评估对 EAT-Lancet 建议的遵守情况。在本研究中，我们旨在评估 PHDI 与代谢综合征（MS）之间的关系。
受试者/方法：我们使用来自伊朗马什哈德医科大学 PERSIAN 队列研究的 6465 名参与者的数据。饮食使用 130 项食物频率问卷（FFQ）进行评估。PHDI 由十六个成分组成，得分在 0 到 150 之间。我们首先评估了 PHDI 对该人群的有效性和可靠性。我们使用回归逻辑模型评估 PHDI 与 MS 及其相关指标之间的关系。
平均 PHDI 评分为 52.3±9. Cronbach's alpha 值为 0.53。在控制年龄和性别后，PHDI 与饮食质量指数-国际（DQI-I）呈正相关，与碳和水足迹呈负相关（p<0.001）。在控制混杂因素后，PHDI 四分位间距与 MS、低 HDL 胆固醇血症和腹部肥胖呈负相关（P<0.05）。
我们发现 PHDI 的有效性和可靠性对于我们研究的伊朗人群是令人满意的。我们的结果表明，较高的 PHDI 可能与 MS、低 HDL 胆固醇血症和腹部肥胖的可能性降低有关。
