Body mass index in young school-age children in relation to organochlorine compounds in early life: a prospective study
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OBJECTIVE: To investigate the association between maternal pregnancy and estimated postnatal serum concentrations of the organochlorines 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153) and 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE) and body mass index (BMI) z-scores in 5- to 9-year-old children.
METHODS: Maternal sera from the INUENDO birth cohort (2002-2004) comprising mother-child pairs (N=1109) from Greenland, Warsaw (Poland), and Kharkiv (Ukraine) were analysed for CB-153 and p,p'-DDE, using gas chromatography-mass-spectrometry, and were grouped into tertiles for statistical analyses. A toxicokinetic model was used to estimate the first 12 months cumulative exposure to the compounds. Associations between these compounds and child age- and sex-specific BMI z-scores were calculated at follow-up (2010-2012), using multiple linear regression analysis.
RESULTS: No clear associations between pregnancy CB-153 and p,p'-DDE and child BMI were observed (the pooled differences in BMI z-score (95% confidence interval) comparing 3rd tertile to 1st tertile were -0.07 (-0.32 to 0.18) and -0.10 (-0.30 to 0.10) kg m(-2), respectively). For postnatal CB-153 and p,p'-DDE and BMI, the overall differences in BMI z-score comparing 3rd tertile to 1st tertile were 0.12 (-0.15 to 0.39) and -0.03 (-0.20 to 0.27) kg m(-2), respectively.
CONCLUSIONS: This follow-up study of Greenlandic, Polish and Ukrainian populations showed no clear association between pregnancy and postnatal exposure to p,p'-DDE and CB-153 and BMI at the age of 5-9 years.
Original language | English |
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Journal | International journal of obesity (2005) |
Volume | 38 |
Issue number | 7 |
Pages (from-to) | 919-925 |
Number of pages | 7 |
ISSN | 0307-0565 |
DOIs | |
Publication status | Published - Jul 2014 |
- Adult, Body Mass Index, Child, Child, Preschool, DDT, Environmental Exposure, Environmental Pollutants, European Continental Ancestry Group, Female, Follow-Up Studies, Greenland, Humans, Hydrocarbons, Chlorinated, Male, Mothers, Poland, Polychlorinated Biphenyls, Pregnancy, Prenatal Exposure Delayed Effects, Prospective Studies, Ukraine
Research areas
ID: 138553676