ArticleEnvironmental health : a global access science source2017
Variability and predictors of urinary concentrations of organophosphate flame retardant metabolites among pregnant women in Rhode Island.
Article in Environmental health : a global access science source, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed, 104 citations in OpenAlex.
- Prenatal exposure to organophosphate ester flame retardants and plasticizers and maternal immune responses in three ECHO cohorts.Environmental research · 2026Article
- Prenatal exposure to organophosphate esters and child cognitive development in the MARBLES prospective cohort.International journal of hygiene and environmental health · 2026Article
- Article
- Epigenome-wide association analysis of prenatal organophosphate ester flame retardant exposure in maternal blood implicates maternal immune and neuronal epigenetic alterations.Environment international · 2026Article
- Gestational exposure to organophosphate ester flame retardants and child growth in weight, height, and body mass index at age 2-10 years: the Environmental influences on Child Health Outcomes Program.Environmental research · 2026Article
- PMToxics · 2026Article
- Organophosphate ester exposure in pregnancy, gestational weight gain, and postpartum body composition in a U.S.-based longitudinal pregnancy cohort.Environmental health : a global access science source · 2025Article
- Prenatal exposure to organophosphate ester flame retardants and behavioral outcomes in early childhood in the Environmental influences on Child Health Outcomes (ECHO) cohort.Environment international · 2025Article
- Gestational exposures to mixtures of multiple chemical classes and autism spectrum disorder in the MARBLES study.Environmental research · 2025Article
- Maternal organophosphate esters and sex steroid hormones in mid-pregnancy.Environmental research · 2025Article
- Gestational exposure to organophosphate esters and autism spectrum disorder and other non-typical development in a cohort with elevated familial likelihood.Environmental research · 2024Article
- Gestational exposure to organophosphate ester flame retardants and risk of childhood obesity in the environmental influences on child health outcomes consortium.Environment international · 2024Article
- Organophosphate ester flame retardant chemicals and maternal depression during pregnancy.Environmental research · 2024Article
- Exposure to organophosphate esters and maternal-child health.Environmental research · 2024Review
- Patterns of urinary organophosphate ester metabolite trajectories in children: the HOME Study.Journal of exposure science & environmental epidemiology · 2024Article
- Prenatal exposures to organophosphate ester metabolites and early motor development in the MADRES cohort.Environmental pollution (Barking, Essex : 1987) · 2024Article
- Associations of Organophosphate Ester Flame Retardant Exposures during Pregnancy with Gestational Duration and Fetal Growth: The Environmental influences on Child Health Outcomes (ECHO) Program.Environmental health perspectives · 2024Article
- Temporal trends and predictors of gestational exposure to organophosphate ester flame retardants and plasticizers.Environment international · 2023Article
- Prenatal exposures to organophosphate ester metabolite mixtures and children's neurobehavioral outcomes in the MADRES pregnancy cohort.Environmental health : a global access science source · 2023Article
- Variability and Longitudinal Trajectories of Phthalate and Replacement Biomarkers across Pregnancy in the Human Placenta and Phthalates Study.Environmental science & technology · 2023Article
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundOrganophospate flame retardants (PFRs) are chemicals of emerging concern due to restrictions on polybrominated diphenyl ether flame retardant formulations. We describe the occurrence, variability, and predictors of urinary metabolites of PFRs among pregnant women.
methodsIn 2014-2015, 59 women from Providence, RI provided up to 3 spot urine samples during pregnancy (~12, 28, and 35 weeks' gestation). We created a pooled urine sample per woman and measured nine relevant metabolites in individual and pooled samples. We used linear mixed models to calculate intraclass correlation coefficients (ICCs) across the 3 measurements and to assess sociodemographic and dietary predictors of PFRs.
resultsThe median (IQR) of bis-2-chloroethyl phosphate (BCEP), bis(1,3-dichloro-2-propyl) phosphate (BDCPP), and diphenyl phosphate (DPhP), the metabolites most frequently detected, from pooled samples were: 0.31 μg/L (0.17-0.54), 1.18 μg/L (0.64-2.19), 0.93 μg/L (0.72-1.97), respectively. We observed fair to good reproducibility for BCEP (ICC = 0.50), BDCPP (ICC = 0.60), and DPhP (ICC = 0.43), and excellent agreement between the urinary flame retardant metabolite concentrations averaged across pregnancy versus pooled urine sample concentrations for BCEP (ICC = 0.95), BDCPP (ICC = 0.89), and DPhP (ICC = 0.93). Adjusting for pertinent sociodemographic factors and gestational week of urine collection, each 1 kg increase in pre-pregnancy weight was associated with greater BCEP (1.1%; 95% CI: 0.1, 2.1), BDCPP (1.5%; 95% CI: 0.3, 2.7), and DPhP (0.5%; 95% CI: 0.0, 1.1). Dietary factors were generally not associated with urinary flame retardant metabolites.
conclusionsUrinary concentrations of BCEP, BDCPP, and DPhP were frequently detected among women in this pilot study and had fair reproducibility across pregnancy. Body size may be an important predictor of urinary flame retardant metabolite concentrations.
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