Healthful Plant-Based Dietary Patterns Associated with Reduced Adverse Effects of Air Pollution on COPD: Findings from a Large Cohort Study

Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on CO...

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Published inNutrients Vol. 17; no. 6; p. 1055
Main Authors Wang, Tianrun, Zhao, Chenyu, Fang, Xiaoqi, Zhao, Jia, Chao, Wangzhe, Bo, Yacong, Zhou, Liting
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 17.03.2025
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Abstract Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk. Methods: Annual concentrations of air pollutants, including particulate matter (PM2.5, PM2.5–10, and PM10), as well as nitrogen oxides (NOX) and nitrogen dioxide (NO2), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk. Results: This prospective cohort study included 162,741 participants. Every standard deviation increase in PM2.5, NO2, and NOX exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM2.5, NO2, and NOX showed a gradually increasing negative impact on COPD risk (p-interaction = 0.001, 0.005, and 0.005, respectively). Conclusions: Exposure to PM2.5, NO2, and NOx may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
AbstractList Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk. Methods: Annual concentrations of air pollutants, including particulate matter (PM2.5, PM2.5–10, and PM10), as well as nitrogen oxides (NOX) and nitrogen dioxide (NO2), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk. Results: This prospective cohort study included 162,741 participants. Every standard deviation increase in PM2.5, NO2, and NOX exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM2.5, NO2, and NOX showed a gradually increasing negative impact on COPD risk (p-interaction = 0.001, 0.005, and 0.005, respectively). Conclusions: Exposure to PM2.5, NO2, and NOx may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk. Methods: Annual concentrations of air pollutants, including particulate matter (PM 2.5 , PM 2.5–10 , and PM 10 ), as well as nitrogen oxides (NO X ) and nitrogen dioxide (NO 2 ), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk. Results: This prospective cohort study included 162,741 participants. Every standard deviation increase in PM 2.5 , NO 2 , and NO X exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM 2.5 , NO 2 , and NO X showed a gradually increasing negative impact on COPD risk ( p -interaction = 0.001, 0.005, and 0.005, respectively). Conclusions: Exposure to PM 2.5 , NO 2 , and NO x may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk. Methods: Annual concentrations of air pollutants, including particulate matter (PM[sub.2.5], PM[sub.2.5–10], and PM[sub.10]), as well as nitrogen oxides (NO[sub.X]) and nitrogen dioxide (NO[sub.2]), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk. Results: This prospective cohort study included 162,741 participants. Every standard deviation increase in PM[sub.2.5], NO[sub.2], and NO[sub.X] exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM[sub.2.5], NO[sub.2], and NO[sub.X] showed a gradually increasing negative impact on COPD risk (p-interaction = 0.001, 0.005, and 0.005, respectively). Conclusions: Exposure to PM[sub.2.5], NO[sub.2], and NO[sub.x] may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk. Annual concentrations of air pollutants, including particulate matter (PM , PM , and PM ), as well as nitrogen oxides (NO ) and nitrogen dioxide (NO ), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk. This prospective cohort study included 162,741 participants. Every standard deviation increase in PM , NO , and NO exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM , NO , and NO showed a gradually increasing negative impact on COPD risk ( -interaction = 0.001, 0.005, and 0.005, respectively). Exposure to PM , NO , and NO may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk.OBJECTIVESThe potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD) remains uncertain. This study aims to explore both the independent and synergistic impacts of air pollution components and PD on COPD risk.Annual concentrations of air pollutants, including particulate matter (PM2.5, PM2.5-10, and PM10), as well as nitrogen oxides (NOX) and nitrogen dioxide (NO2), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk.METHODSAnnual concentrations of air pollutants, including particulate matter (PM2.5, PM2.5-10, and PM10), as well as nitrogen oxides (NOX) and nitrogen dioxide (NO2), were estimated using a land-use regression model. We calculated the plant-based diet index (PDI), healthy plant-based diet index (hPDI), and unhealthy plant-based diet index (uPDI) by evaluating scores of 17 food categories. Cox regression was performed to evaluate their individual and combined effects on COPD risk.This prospective cohort study included 162,741 participants. Every standard deviation increase in PM2.5, NO2, and NOX exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM2.5, NO2, and NOX showed a gradually increasing negative impact on COPD risk (p-interaction = 0.001, 0.005, and 0.005, respectively).RESULTSThis prospective cohort study included 162,741 participants. Every standard deviation increase in PM2.5, NO2, and NOX exposure was associated with an increased risk of COPD, with an adjusted HR (95% CI) of 1.049 (1.019, 1.079), 1.065 (1.034, 1.096), and 1.063 (1.035, 1.092), respectively. Compared with low-quality hPDI, moderate- and high-quality hPDI were associated with a lower risk of COPD with an adjusted HR (95% CI) of 0.884 (0.827, 0.946) and 0.758 (0.697, 0.825), respectively. For the combined effects, with the level of hPDI increasing, the joint effects of hPDI with PM2.5, NO2, and NOX showed a gradually increasing negative impact on COPD risk (p-interaction = 0.001, 0.005, and 0.005, respectively).Exposure to PM2.5, NO2, and NOx may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.CONCLUSIONSExposure to PM2.5, NO2, and NOx may elevate the risk of chronic obstructive pulmonary disease (COPD), whereas adherence to a high-quality hPDI could potentially counteract this association. Future research should explore the underlying biological mechanisms, assess the long-term effects of diet, and evaluate the effectiveness of dietary modifications in diverse populations to inform targeted prevention policies.
Audience Academic
Author Wang, Tianrun
Fang, Xiaoqi
Bo, Yacong
Zhou, Liting
Zhao, Jia
Chao, Wangzhe
Zhao, Chenyu
AuthorAffiliation 1 School of Public Health, Jilin University, Changchun 130022, China; 15617621703@163.com (T.W.); 17861528838@163.com (X.F.); 18304448578@163.com (J.Z.); chaowz2721@mails.jlu.edu.cn (W.C.)
2 College of Public Health, Zhengzhou University, Zhengzhou 450001, China; zcy8715@gs.zzu.edu.cn
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air pollution
cohort study
plant-based diet
chronic obstructive pulmonary disease
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Snippet Objectives: The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary...
The potential of a plant-based diet (PD) to mitigate the adverse effects of long-term air pollution exposure on chronic obstructive pulmonary disease (COPD)...
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StartPage 1055
SubjectTerms Adult
Aged
Air Pollutants - adverse effects
Air Pollutants - analysis
Air pollution
Air Pollution - adverse effects
Air Pollution - analysis
Air quality management
Biobanks
Body mass index
Chronic illnesses
Chronic obstructive pulmonary disease
Cohort analysis
Cohort Studies
Development and progression
Diabetes
Diet
Diet, Healthy
Diet, Vegetarian
Ethnicity
Family income
Female
Food
Food habits
Grain
Health care
Health services
Hospitals
Humans
Hypertension
Lung diseases, Obstructive
Male
Middle Aged
Mortality
Nitrogen dioxide
Nitrogen Dioxide - adverse effects
Nitrogen Dioxide - analysis
Nitrogen Oxides - adverse effects
Nitrogen Oxides - analysis
Occupational health and safety
Outdoor air quality
Particulate Matter - adverse effects
Particulate Matter - analysis
Pollutants
Production management
Prospective Studies
Pulmonary Disease, Chronic Obstructive - epidemiology
Pulmonary Disease, Chronic Obstructive - etiology
Pulmonary Disease, Chronic Obstructive - prevention & control
Questionnaires
Risk Factors
Type 2 diabetes
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Title Healthful Plant-Based Dietary Patterns Associated with Reduced Adverse Effects of Air Pollution on COPD: Findings from a Large Cohort Study
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Volume 17
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