Evidence map›Paper›PMID 29155920›Full record

ArticleAmerican journal of epidemiology2018

Early-Pregnancy Plasma Concentrations of Perfluoroalkyl Substances and Birth Outcomes in Project Viva: Confounded by Pregnancy Hemodynamics?

Sharon K Sagiv, Sheryl L Rifas-Shiman, Abby F Fleisch, Thomas F Webster, Antonia M Calafat, Xiaoyun Ye, Matthew W Gillman, Emily Oken

Open access · bronzeAbstract read
In one paragraph

Article in American journal of epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 8 pooled it
8.3field-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

84 citing papers in PubMed, 8 syntheses or guidelines pooled it, 163 citations in OpenAlex.

  1. Pooled it
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  4. Determinants of maternal and neonatal PFAS concentrations: a review.Environmental health : a global access science source · 2023
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  10. Stress-activated pathways mediate PFAS effects on human placental syncytiotrophoblast cells.Toxicological sciences : an official journal of the Society of Toxicology · 2026
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24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 1 country.

Sharon K SagivCenter for Environmental Research and Children's Health, School of Public Health, University of California, Berkeley, Berkeley, California.
Sheryl L Rifas-ShimanObesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts.
Abby F FleischPediatric Endocrinology and Diabetes Program, Maine Medical Center, Portland, Maine.
Thomas F WebsterDepartment of Environmental Health, School of Public Health, Boston University, Boston, Massachusetts.
Antonia M CalafatDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia.
Xiaoyun YeDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia.
Matthew W GillmanEnvironmental Influences on Child Health Outcomes.
Emily OkenObesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts.
Centers for Disease Control and Prevention · USHarvard Pilgrim Health Care · USBoston University · USMaine Medical Center Research Institute · USUniversity of California, Berkeley · US

Funding

Prenatal environmental determinants of health in young adulthood: a lifecourse approachR01HD034568 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI Marie-France Hivert, Emily Oken · 1998 to 2026
$20.6M
Prenatal exposure to polyfluoroalkyl chemicals (PFCs)and child growth and developmentR01ES021447 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI SAGIV, SHARON K. · 2012 to 2016
$2.8M
Air Pollution Exposure during Pregnancy, Maternal Glycemia, and OffspringGrowthK23ES024803 · NIEHS · MAINEHEALTH · PI FLEISCH, ABBY · 2015 to 2019
$835k
Intramural CDC HHS CC999999NICHD NIH HHS R01 HD034568NIEHS NIH HHS K23 ES024803NIEHS NIH HHS R01 ES021447
6 · The paper itself

Abstract

Associations of prenatal exposure to perfluoroalkyl substances (PFAS), ubiquitous chemicals used in stain- and water-resistant products, with adverse birth outcomes may be confounded by pregnancy hemodynamics. We measured plasma concentrations of 4 PFAS in early pregnancy (median length of gestation, 9 weeks) among 1,645 women in Project Viva, a study of a birth cohort recruited during 1999-2002 in eastern Massachusetts. We fitted multivariable models to estimate associations of PFAS with birth weight-for-gestational age z score and length of gestation, adjusting for sociodemographic confounders and 2 hemodynamic markers: 1) plasma albumin concentration, a measure of plasma volume expansion, and 2) plasma creatinine concentration, used to estimate glomerular filtration rate. Perfluorooctane sulfonate (PFOS) and perfluorononanoate (PFNA) were weakly inversely associated with birth weight-for-gestational age z scores (adjusted β = -0.04 (95% confidence interval (CI): -0.08, 0.01) and adjusted β = -0.06 (95% CI: -0.11, -0.01) per interquartile-range increase, respectively). PFOS and PFNA were also associated with higher odds of preterm birth (e.g., for highest PFOS quartile vs. lowest, adjusted odds ratio = 2.4, 95% CI: 1.3, 4.4). Adjusting for markers of pregnancy hemodynamics (glomerular filtration rate and plasma albumin), to the extent that they accurately reflect underlying pregnancy physiology, did not materially affect associations. These results suggest that pregnancy hemodynamics may not confound associations with birth outcomes when PFAS are measured early in pregnancy.

Indexed as

AdultAlkanesulfonic AcidsBirth WeightCreatinineEnvironmental PollutantsFemaleFetal DevelopmentFluorocarbonsGestational AgeHemodynamicsHumansMassachusettsMaternal ExposurePregnancyPrenatal Exposure Delayed EffectsSerum AlbuminAlkanesulfonic AcidsCreatinineEnvironmental PollutantsFluorocarbonshexadecafluoro-nonanoic acidperfluorooctane sulfonic acidSerum Albumin

Identifiers

PMID29155920
PMCPMC5884712
OpenAlexW2791210587

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.