Evidence map›Paper›PMID 25019468›Full record

ArticleEnvironmental research2014

Associations of prenatal maternal blood mercury concentrations with early and mid-childhood blood pressure: a prospective study.

Brian T Kalish, Sheryl L Rifas-Shiman, Robert O Wright, Chitra J Amarasiriwardena, Innocent Jayawardene, Matthew W Gillman, Steven E Lipshultz, Emily Oken

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 pooled it
2.4field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 4 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Chronic mercury exposure and blood pressure in children and adolescents: a systematic review.Environmental science and pollution research international · 2019
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Review
  8. Article
  9. Environmental health perspectives · 2021
    Article
  10. Article
  11. Review
  12. Early-life chemical exposures and risk of metabolic syndrome.Diabetes, metabolic syndrome and obesity : targets and therapy · 2017
    Review
  13. Article
  14. Article
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

8 authors at 5 institutions in 1 country.

Brian T KalishHarvard Medical School, Boston, MA, United States. Electronic address: Brian.kalish@childrens.harvard.edu.
Sheryl L Rifas-ShimanObesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, United States.
Robert O WrightChanning Laboratory, Brigham and Women׳s Hospital and Harvard Medical School, Boston, MA, United States.
Chitra J AmarasiriwardenaChanning Laboratory, Brigham and Women׳s Hospital and Harvard Medical School, Boston, MA, United States.
Innocent JayawardeneDepartment of Environmental Health, Harvard School of Public Health, Boston, MA, United States.
Matthew W GillmanObesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, United States.
Steven E LipshultzDepartment of Pediatrics, Wayne State University School of Medicine and Children׳s Hospital of Michigan, Detroit, MI, United States.
Emily OkenObesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, United States.
Brigham and Women's Hospital · USHarvard University · USHarvard Pilgrim Health Care · USHarvard University Press · USWayne State University · 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
Stress, Lead, Iron Deficiency and NeurodevelopmentR01ES013744 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Robert O Wright · 2007 to 2026
$13.4M
Pre- and Peri-natal Predictors of Childhood ObesityR37HD034568 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI GILLMAN, MATTHEW W · 2012 to 2015
$4.5M
BPA, Phthalates & Stress: Mechanisms and Interactions for Childhood ObesityR01ES021357 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI BACCARELLI, ANDREA, WRIGHT, ROBERT O · 2012 to 2016
$3.3M
Metal Mixtures and NeurodevelopmentR01ES014930 · NIEHS · BRIGHAM AND WOMEN'S HOSPITAL · PI WRIGHT, ROBERT O · 2006 to 2010
$3.2M
Environment, Fetal Tissue DNA Methylation & BirthweightR01ES020268 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BACCARELLI, ANDREA, WRIGHT, ROBERT O · 2011 to 2013
$2.5M
Patient-oriented Research in Maternal Perinatal Overnutrition and Child AdiposityK24HD069408 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI OKEN, EMILY · 2011 to 2015
$844k
NICHD NIH HHS K24 HD069408NICHD NIH HHS R01 HD034568NICHD NIH HHS R37 HD034568NIEHS NIH HHS R01 ES013744NIEHS NIH HHS R01 ES014930NIEHS NIH HHS R01 ES020268NIEHS NIH HHS R01 ES021357
6 · The paper itself

Abstract

backgroundChildhood blood pressure (BP) is an important determinant of adult cardiovascular disease. Prenatal exposure to methylmercury through maternal fish consumption has been reported to increase the BP of children years later.

methodsMother-child pairs were enrolled from Project Viva, a prospective cohort study in Massachusetts. From second trimester maternal blood samples, we measured erythrocyte mercury concentration. Systolic BP in children, measured up to 5 times per visit in early and mid-childhood (median ages 3.2 and 7.7 years), was the primary outcome. We used mixed-effect regression models to account for variation in the number of BP measurements and to average effects over both time points.

resultsAmong 1103 mother-child pairs, mean (SD) second trimester total erythrocyte mercury concentration was 4.0 (3.9)ng/g among mothers whose children were assessed in early childhood and 4.0 (4.0)ng/g for children assessed in mid-childhood. Mean (SD) offspring systolic BP was 92.1 (10.4)mm Hg in early childhood and 94.3 (8.4)mm Hg in mid-childhood. After adjusting for mother and infant characteristics, mean second trimester blood mercury concentration was not associated with child systolic BP (regression coefficient, 0.1mm Hg; 95% CI, -1.3 to 1.5 for quartile 4 vs. quartile 1) at either time period. Further adjusting for second trimester maternal fish consumption, as well as docosahexaenoic acid and eicosapentaenoic acid consumption, did not substantially change the estimates.

conclusionsThe results of this study demonstrate an absence of association between childhood blood pressure and low-level mercury exposure typical of the general US population.

Indexed as

AdultBlood PressureChildChild, PreschoolFemaleFetal BloodHumansMaleMaternal ExposureMethylmercury CompoundsPregnancyPrenatal Exposure Delayed EffectsProspective StudiesMethylmercury CompoundsBlood pressureMercuryPrenatal exposure

Identifiers

PMID25019468
PMCPMC4364915
OpenAlexW2078245309

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.