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Traffic-Related Air Pollution and Child BMI—A Study of Prenatal Exposure to Nitrogen Oxides and Body Mass Index in Children at the Age of Four Years in Malmö, Sweden

Author

Listed:
  • Kasper Frondelius

    (Occupational and Environmental Medicine, Department for Laboratory Medicine, Lund University, 221 85 Lund, Sweden)

  • Anna Oudin

    (Occupational and Environmental Medicine, Department for Laboratory Medicine, Lund University, 221 85 Lund, Sweden)

  • Ebba Malmqvist

    (Occupational and Environmental Medicine, Department for Laboratory Medicine, Lund University, 221 85 Lund, Sweden)

Abstract

Traffic-related air pollution could be a danger to the health of children. Earlier studies have linked prenatal exposure to an increased risk of a range of diseases and negative health outcomes, including overweight and obesity. Presently, a knowledge gap exists in investigating the risk of overweight and obesity among children exposed to lower levels of air pollution in utero. This study aimed to investigate the relationship between prenatal traffic-related air pollution (nitrogen dioxides (NO x ) and traffic density) and childhood overweight and obesity in Malmö, Sweden. A cohort, based on attendance of a four-year check-up examination at Swedish Child Health Care (CHC) centers, and a parent-assessed questionnaire provided data on body-mass index adjusted for four-year-old children (ISO-BMI) as well as socioeconomic and health variables. We estimated exposure by using traffic density and levels of NO x at the maternal geocoded residential level. Analysis of 5815 children was performed using binary logistic regression models. This study showed no associations of increased risk for childhood overweight or obesity through to prenatal exposure to NO x in this low-exposure setting. We further suggest analysis of risks related to exposure levels ranging between the ones presented here and those proposed in previous literature.

Suggested Citation

  • Kasper Frondelius & Anna Oudin & Ebba Malmqvist, 2018. "Traffic-Related Air Pollution and Child BMI—A Study of Prenatal Exposure to Nitrogen Oxides and Body Mass Index in Children at the Age of Four Years in Malmö, Sweden," IJERPH, MDPI, vol. 15(10), pages 1-12, October.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:10:p:2294-:d:176768
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    References listed on IDEAS

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    1. Tiziana Grassi & Antonella De Donno & Francesco Bagordo & Francesca Serio & Prisco Piscitelli & Elisabetta Ceretti & Claudia Zani & Gaia C. V. Viola & Milena Villarini & Massimo Moretti & Sara Levorat, 2016. "Socio-Economic and Environmental Factors Associated with Overweight and Obesity in Children Aged 6–8 Years Living in Five Italian Cities (the MAPEC_LIFE Cohort)," IJERPH, MDPI, vol. 13(10), pages 1-11, October.
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