Xiu-de Li1, Hong-Juan Cao2, Shao-Yu Xie2, Kai-Chun Li2, Fang-Biao Tao3, Lin-Sheng Yang4, Jun-Qing Zhang2, Yuan-Song Bao5. 1. Lu'an Municipal Center for Disease Control and Prevention, Anhui Lu'an 237000, China. Electronic address: lxd@lacdc.com.cn. 2. Lu'an Municipal Center for Disease Control and Prevention, Anhui Lu'an 237000, China. 3. School of Public Health, Anhui Medical University, Anhui Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Hefei 230032, China. 4. School of Public Health, Anhui Medical University, Anhui Hefei 230032, China. 5. Yuan Center for Disease Control and Prevention, Anhui Lu'an 237008, China.
Abstract
BACKGROUND: A vegetarian diet may be a risk factor for depression, but this relationship was unclear in the elderly Chinese population. METHODS: Self-report data were gathered from 1051 elderly persons using the Cohort of Elderly Health and Environment Controllable Factors, which was created in West Anhui, China. The depressive symptoms were set as binary, ordinal, and continuous outcomes, respectively, whereas the dietary structures were computed as an ordinal variable and a dummy variable. Multiple logistic regression, ordinal regression, and linear regression were used to assess the relationship by adjusting the potential confounding variables with p-values of <0.1 in univariate analysis. RESULTS: The elderly participants who had a vegetable-based diet had the highest GDS scores of 8.78 ± 6.894 (p = 0.001) and the highest rate of depression (32.9%, p = 0.003). After adjustment for the potential confounders, elderly men who had a vegetable-based diet had a higher rate of depression (OR[95%CI]: 1.62[1.07-2.46], 4.71[1.38-16.03]), more severe symptoms of depression (OR[95%CI]: 8.85[2.94-34.12]), and higher GDS scores (β[95%CI]: 1.46[0.70-2.22], 2.97[1.28-4.67]) than male participants who had a meat-based diet, but this was not the case in women. LIMITATIONS: All data were self-reported. The study lacked quantitatively evaluated dietary intake. The duration of the current dietary structures and comorbidities were not reported. The cross-sectional study made the causal role uncertain. CONCLUSIONS: Vegetarian diets may pose a greater risk of depressive symptoms among the elderly Chinese population, especially elderly men. Given the cross-sectional nature of this study, the causal role was uncertain. Further prospective studies, in particular among elderly women, are needed.
BACKGROUND: A vegetarian diet may be a risk factor for depression, but this relationship was unclear in the elderly Chinese population. METHODS: Self-report data were gathered from 1051 elderly persons using the Cohort of Elderly Health and Environment Controllable Factors, which was created in West Anhui, China. The depressive symptoms were set as binary, ordinal, and continuous outcomes, respectively, whereas the dietary structures were computed as an ordinal variable and a dummy variable. Multiple logistic regression, ordinal regression, and linear regression were used to assess the relationship by adjusting the potential confounding variables with p-values of <0.1 in univariate analysis. RESULTS: The elderly participants who had a vegetable-based diet had the highest GDS scores of 8.78 ± 6.894 (p = 0.001) and the highest rate of depression (32.9%, p = 0.003). After adjustment for the potential confounders, elderly men who had a vegetable-based diet had a higher rate of depression (OR[95%CI]: 1.62[1.07-2.46], 4.71[1.38-16.03]), more severe symptoms of depression (OR[95%CI]: 8.85[2.94-34.12]), and higher GDS scores (β[95%CI]: 1.46[0.70-2.22], 2.97[1.28-4.67]) than male participants who had a meat-based diet, but this was not the case in women. LIMITATIONS: All data were self-reported. The study lacked quantitatively evaluated dietary intake. The duration of the current dietary structures and comorbidities were not reported. The cross-sectional study made the causal role uncertain. CONCLUSIONS: Vegetarian diets may pose a greater risk of depressive symptoms among the elderly Chinese population, especially elderly men. Given the cross-sectional nature of this study, the causal role was uncertain. Further prospective studies, in particular among elderly women, are needed.
Authors: Xinji Liu; Jun Chen; Renwen Geng; Rong Wei; Peiru Xu; Beijing Chen; Kaiyong Liu; Linsheng Yang Journal: J Int Med Res Date: 2020-06 Impact factor: 1.671
Authors: Shila Minari Hargreaves; António Raposo; Ariana Saraiva; Renata Puppin Zandonadi Journal: Int J Environ Res Public Health Date: 2021-04-12 Impact factor: 3.390