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<p>This study aimed to evaluate associations between plant-based diets and the prevalence of depressive symptoms (DepS) among Chinese middle-aged and older adults. This study included 3153 participants aged 45 and older. Dietary intake was collected using a food frequency questionnaire, and DepS was evaluated using the 9-item Patient Health Questionnaire. Foods were classified into 17 groups and three plant-based diet indices were created, including the overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), and unhealthful plant-based diet index (uPDI). Compared to the lowest quartile, participants in the highest quartile of hPDI had lower odds of DepS (OR = 0.60; 95% CI: 0.40, 0.89). Conversely, the highest quartile of the uPDI was associated with higher odds of DepS (OR = 1.81; 95% CI: 1.16, 2.82). These findings supported that the quality of plant-based diets matters for mental health.</p>

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Association between plant-based diets and depressive symptoms among Chinese middle-aged and older adults

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月25日

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  • Li Zhang,
  • Shuai Chen,
  • Lijuan Xu,
  • Sui Tang,
  • Chen Huang,
  • Jin Zhou,
  • Chang-Shu Liu,
  • Sai Wang,
  • Yang Cong,
  • Tingting Li,
  • Liangkai Chen,
  • Wenxue Zhang,
  • Shuang Rong

摘要

This study aimed to evaluate associations between plant-based diets and the prevalence of depressive symptoms (DepS) among Chinese middle-aged and older adults. This study included 3153 participants aged 45 and older. Dietary intake was collected using a food frequency questionnaire, and DepS was evaluated using the 9-item Patient Health Questionnaire. Foods were classified into 17 groups and three plant-based diet indices were created, including the overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), and unhealthful plant-based diet index (uPDI). Compared to the lowest quartile, participants in the highest quartile of hPDI had lower odds of DepS (OR = 0.60; 95% CI: 0.40, 0.89). Conversely, the highest quartile of the uPDI was associated with higher odds of DepS (OR = 1.81; 95% CI: 1.16, 2.82). These findings supported that the quality of plant-based diets matters for mental health.