The global air pollution and undernutrition among children under five

Abstract Malnutrition and PM2.5 pollution remain a pressing global public health concern, especially to vulnerable populations like children under five years old. This study aimed to investigate the correlation between undernutrition in children under five years old and air pollution (exposure to PM...

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Main Authors: Rozhan Khezri, Sepideh Jahanian, Mitra Gholami, Fatemeh Rezaei
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-87217-y
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author Rozhan Khezri
Sepideh Jahanian
Mitra Gholami
Fatemeh Rezaei
author_facet Rozhan Khezri
Sepideh Jahanian
Mitra Gholami
Fatemeh Rezaei
author_sort Rozhan Khezri
collection DOAJ
description Abstract Malnutrition and PM2.5 pollution remain a pressing global public health concern, especially to vulnerable populations like children under five years old. This study aimed to investigate the correlation between undernutrition in children under five years old and air pollution (exposure to PM2.5) on a global scale. This ecological study evaluated the correlation between undernutrition (wasting and stunting) and air pollution in 123 countries. A multiple linear regression analysis was used to identify the factors significantly related to the wasting and stunting. The scatter plots were utilized to depict the prevalence of wasting and stunting in children under five years old across studied countries concerning air pollution, Human Development Index (HDI), and Socio-Demographic Index (SDI). The prevalence of wasting was higher in countries with higher exposure to PM2.5 (R2 = 0.13, p < 0.001), less HDI (R2 = 0.20, p < 0.001), and less SDI (R2 = 0.16, p = 0.005). Also, the prevalence of stunting was higher in countries with higher exposure to PM2.5 (R2 = 0.07, p = 0.003), less HDI (R2 = 0.54, p < 0.003), and less SDI (R2 = 0.52, p = 0.005). The results of multivariable linear regression indicated a direct and positive correlation between the prevalence of wasting in children under five years old and exposure to PM2.5 (β = 0.06, p = 0.003) and an indirect and negative correlation with HDI (β =-10.3, p < 0.001). Also, there was a significant association between the prevalence of stunting and HDI (β =-44, p < 0.003). There was a significant relationship between the prevalence of wasting in children under five years old and exposure to PM2.5 and HDI. Further research is required to confirm this association.
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spelling doaj-art-acd24f4702dd4dd9b23dc99abd82a77c2025-01-26T12:32:21ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-025-87217-yThe global air pollution and undernutrition among children under fiveRozhan Khezri0Sepideh Jahanian1Mitra Gholami2Fatemeh Rezaei3Student Research Committee, Iran University of Medical SciencesDepartment of Anesthesiology and Perioperative Medicine, Mayo ClinicResearch Center for Environmental Health Technology, Iran University of Medical SciencesResearch Center for Social Determinants of Health, Jahrom University of Medical SciencesAbstract Malnutrition and PM2.5 pollution remain a pressing global public health concern, especially to vulnerable populations like children under five years old. This study aimed to investigate the correlation between undernutrition in children under five years old and air pollution (exposure to PM2.5) on a global scale. This ecological study evaluated the correlation between undernutrition (wasting and stunting) and air pollution in 123 countries. A multiple linear regression analysis was used to identify the factors significantly related to the wasting and stunting. The scatter plots were utilized to depict the prevalence of wasting and stunting in children under five years old across studied countries concerning air pollution, Human Development Index (HDI), and Socio-Demographic Index (SDI). The prevalence of wasting was higher in countries with higher exposure to PM2.5 (R2 = 0.13, p < 0.001), less HDI (R2 = 0.20, p < 0.001), and less SDI (R2 = 0.16, p = 0.005). Also, the prevalence of stunting was higher in countries with higher exposure to PM2.5 (R2 = 0.07, p = 0.003), less HDI (R2 = 0.54, p < 0.003), and less SDI (R2 = 0.52, p = 0.005). The results of multivariable linear regression indicated a direct and positive correlation between the prevalence of wasting in children under five years old and exposure to PM2.5 (β = 0.06, p = 0.003) and an indirect and negative correlation with HDI (β =-10.3, p < 0.001). Also, there was a significant association between the prevalence of stunting and HDI (β =-44, p < 0.003). There was a significant relationship between the prevalence of wasting in children under five years old and exposure to PM2.5 and HDI. Further research is required to confirm this association.https://doi.org/10.1038/s41598-025-87217-y
spellingShingle Rozhan Khezri
Sepideh Jahanian
Mitra Gholami
Fatemeh Rezaei
The global air pollution and undernutrition among children under five
Scientific Reports
title The global air pollution and undernutrition among children under five
title_full The global air pollution and undernutrition among children under five
title_fullStr The global air pollution and undernutrition among children under five
title_full_unstemmed The global air pollution and undernutrition among children under five
title_short The global air pollution and undernutrition among children under five
title_sort global air pollution and undernutrition among children under five
url https://doi.org/10.1038/s41598-025-87217-y
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