Evidence map›Paper›PMID 33640694›Full record

ArticleEnvironment international2021

Parental preconception exposure to phenol and phthalate mixtures and the risk of preterm birth.

Yu Zhang, Vicente Mustieles, Paige L Williams, Blair J Wylie, Irene Souter, Antonia M Calafat, Melina Demokritou, Alexandria Lee, Stylianos Vagios, Russ Hauser and 1 more

Open access · goldAbstract read
In one paragraph

Article in Environment international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Endocrine Disrupting Agents: Toxicological Aspects on Male Reproduction.Reproductive sciences (Thousand Oaks, Calif.) · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Yu ZhangDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Vicente MustielesUniversity of Granada, Center for Biomedical Research (CIBM), Spain; Instituto de Investigación Biosanitaria Ibs GRANADA, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 18100, Spain.
Paige L WilliamsDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Blair J WylieDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Irene SouterMassachusetts General Hospital Fertility Center, Harvard Medical School, Boston, MA, USA; Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, USA.
Antonia M CalafatNational Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Melina DemokritouDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Alexandria LeeDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Stylianos VagiosMassachusetts General Hospital Fertility Center, Harvard Medical School, Boston, MA, USA; Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, USA.
Russ HauserDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Carmen MesserlianDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Massachusetts General Hospital Fertility Center, Harvard Medical School, Boston, MA, USA; Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, USA. Electronic address: cmesser@hsph.harvard.edu.
Harvard University · USReproductive Science Center · USBeth Israel Deaconess Medical Center · USInstituto de Investigación Biosanitaria de Granada · ESNational Center for Environmental Health · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI JAIME ELIZABETH HART · 1985 to 2026
$44.6M
PCBs, Phthalates and Male Reproductive HealthR01ES009718 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI HAUSER, RUSS B · 1999 to 2018
$11.6M
The Impact of Maternal and Paternal Preconception Perfluoroalkyl Substance (PFAS) Exposure on Reproductive and Perinatal OutcomesR01ES031657 · NIEHS · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI MAHALINGAIAH, SHRUTHI · 2020 to 2024
$3.1M
Development and Testing of Response Surface Methods for Investigating the Epidemiology of Exposure to MixturesR01ES028800 · NIEHS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WEBSTER, THOMAS F · 2018 to 2021
$1.7M
NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R01 ES009718NIEHS NIH HHS R01 ES028800NIEHS NIH HHS R01 ES031657
6 · The paper itself

Abstract

backgroundParental preconception exposure to select phenols and phthalates was previously associated with increased risk of preterm birth in single chemical analyses. However, the joint effect of phenol and phthalate mixtures on preterm birth is unknown.

methodsWe included 384 female and 211 male (203 couples) participants seeking infertility treatment in the Environment and Reproductive Health (EARTH) Study who gave birth to 384 singleton infants between 2005 and 2018. Mean preconception urinary concentrations of bisphenol A (BPA), parabens, and eleven phthalate biomarkers, including di(2-ethylhexyl) phthalate (DEHP) metabolites, were examined. We used principal component analysis (PCA) with log-Poisson regression and Probit Bayesian Kernel Machine Regression (BKMR) with hierarchical variable selection to examine maternal and paternal phenol and phthalate mixtures in relation to preterm birth. Couple-based BKMR model was fit to assess couples' joint mixtures in relation to preterm birth.

resultsPCA identified the same four factors for maternal and paternal preconception mixtures. Each unit increase in PCA scores of maternal (adjusted Risk Ratio (aRR): 1.36, 95%CI: 1.00, 1.84) and paternal (aRR: 1.47, 95%CI: 0.90, 2.42) preconception DEHP-BPA factor was positively associated with preterm birth. Maternal and paternal BKMR models consistently presented the DEHP-BPA factor with the highest group Posterior Inclusion Probability (PIP). BKMR models further showed that maternal preconception BPA and mono(2-ethyl-5-hydroxyhexyl) phthalate, and paternal preconception mono(2-ethylhexyl) phthalate were positively associated with preterm birth when the remaining mixture components were held at their median concentrations. Couple-based BKMR models showed a similar relative contribution of paternal (PIP: 61%) and maternal (PIP: 77%) preconception mixtures on preterm birth. We found a positive joint effect on preterm birth across increasing quantiles of couples' total mixture concentrations.

conclusionIn this prospective cohort of subfertile couples, maternal BPA and DEHP, and paternal DEHP exposure before conception were positively associated with preterm birth. Both parental windows jointly contributed to the outcome. These results suggest that preterm birth may be a couple-based pregnancy outcome.

Indexed as

Diethylhexyl PhthalatePhthalic AcidsPremature BirthBayes TheoremBenzhydryl CompoundsFemaleHumansInfantInfant, NewbornMaleMaternal ExposurePaternal ExposurePhenolPhenolsPregnancyProspective StudiesBenzhydryl CompoundsDiethylhexyl PhthalatePhenolPhenolsphthalic acidPhthalic AcidsBPACoupleDEHPPretermSingletonSubfertile

Identifiers

PMID33640694
PMCPMC8488320
OpenAlexW3130511436

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.