title: Plasma polychlorinated biphenyl levels in Dutch preschool children either breast-fed or formula-fed during infancy.
abstract: OBJECTIVE
  This study examined the influence of lactational and in utero exposure to polychlorinated biphenyls (PCBs) on plasma PCB levels in children.
  
  
  METHODS
  Plasma PCB levels were measured in 173 children at 3.5 years, of whom 91 were breast-fed and 82 were formula-fed in infancy.
  
  
  RESULTS
  Median plasma PCB levels were 3.6 times higher in breast-fed children (0.75 microgram/L) than in their formula-fed peers (0.21 microgram/L). Breast-feeding period and breast-milk PCB levels were important predictors for PCB levels in the breast-fed group. For children in the formula-fed group, PCB levels were significantly related to their material plasma PCB levels.
  
  
  CONCLUSIONS
  PCB levels in Dutch preschool children are related to transfer of maternal PCBs; therefore, strategies should be aimed at reducing maternal PCB body burden.
authors.affiliation: Department of Pediatrics, Erasmus University, Rotterdam, The Netherlands.
authors.forename: S
authors.initials: S
authors.lastname: Patandin
authors.forename: N
authors.initials: N
authors.lastname: Weisglas-Kuperus
authors.forename: M A
authors.initials: MA
authors.lastname: de Ridder
authors.forename: C
authors.initials: C
authors.lastname: Koopman-Esseboom
authors.forename: W A
authors.initials: WA
authors.lastname: van Staveren
authors.forename: C G
authors.initials: CG
authors.lastname: van der Paauw
authors.forename: P J
authors.initials: PJ
authors.lastname: Sauer
mesh_terms: D000328:Adult; D001942:Breast Feeding; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007225:Infant Food; D008297:Male; D009426:Netherlands; D011078:Polychlorinated Biphenyls / Q000097:blood*; D012044:Regression Analysis
chemical_list: D011078:Polychlorinated Biphenyls