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Dietary patterns related to exposure to persistent organic pollutants based on the Ewha Birth and Growth Cohort

Hye Ah Lee1, Hyo Jeong Hwang2, Se Young Oh3

  • 1Clinical Trial Center, Mokdong Hospital, Ewha Womans University, Seoul, Republic of Korea.

Environmental Pollution (Barking, Essex : 1987)
|September 3, 2018
PubMed

Insights

Dietary patterns significantly influence children's blood levels of persistent organic pollutants (POPs), which are endocrine disruptors. Specific food group intakes correlate with different POPs, highlighting potential intervention targets.

Area of Science:

  • Environmental Health
  • Pediatric Nutrition
  • Toxicology

Background:

  • Persistent organic pollutants (POPs) are endocrine-disrupting chemicals commonly ingested through diet.
  • Understanding the relationship between dietary patterns and POP levels in children is crucial for public health.
  • Previous research has not fully elucidated specific dietary links to various POPs in pediatric populations.

Purpose of the Study:

  • To identify dietary patterns associated with blood levels of persistent organic pollutants (POPs) in Korean children.
  • To investigate the specific food groups contributing to different types of POPs, including marker PCBs, dioxin-like PCBs, and OCPs.
  • To assess the linear relationship between identified dietary patterns and measured POP concentrations in children's blood.

Main Methods:

  • Utilized data from the Ewha Birth and Growth Cohort study, including 188 children aged 7-9 years.
  • Employed a semi-quantitative food-frequency questionnaire to collect daily food intake data, categorized into 33 food groups.
  • Applied reduced rank regression (RRR) analysis with blood POP levels as dependent variables to determine dietary patterns.

Main Results:

  • A marker polychlorinated biphenyl (PCB) pattern was linked to higher intake of shellfish/salted seafood, cheese, nuts, and seeds.
  • Dioxin-like PCB patterns correlated with increased consumption of yogurt, beverages, and fruit, and decreased intake of grains, seaweeds, and processed meat.
  • Dietary pattern scores showed a significant linear association with blood POP levels, even after adjusting for covariates.

Conclusions:

  • Specific dietary patterns are significantly associated with blood POP levels in children.
  • Findings suggest that dietary interventions targeting specific food groups could help reduce POP exposure in children.
  • Further research is warranted to develop effective intervention strategies for mitigating POPs in pediatric populations.

Keywords:
ChildrenDietary patternPersistent organic pollutants

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