Evidence map›Paper›PMID 17961541›Full record

ArticleEnvironmental research2008

Scalp hair and urine mercury content of children in the Northeast United States: the New England Children's Amalgam Trial.

Julie E Dunn, Felicia L Trachtenberg, Lars Barregard, David Bellinger, Sonja McKinlay

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.1field-weighted citation impact, top 15% 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

8 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Methodological considerations with the use of urine samples for assessment of mercury excretion and markers of renal damage.Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals · 2010
    Article
  7. Mercury exposure and children's health.Current problems in pediatric and adolescent health care · 2010
    Review
  8. 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

5 authors at 4 institutions in 2 countries.

Julie E DunnNew England Research Institutes, 9 Galen St., Watertown, MA, USA. jdunn@nesa.edu
Felicia L Trachtenberg
Lars Barregard
David Bellinger
Sonja McKinlay
New England Research (United States) · USHarvard University · USNew England Research Institutes · USSahlgrenska University Hospital · SE

Funding

HEALTH EFFECTS OF DENTAL AMALGAMS IN CHILDRENU01DE011886 · NIDCR · NEW ENGLAND RESEARCH INSTITUTES, INC. · PI MCKINLAY, SONJA M · 1996 to 2005
$8.4M
NIDCR NIH HHS U01 DE011886NIDCR NIH HHS U01 DE11886
6 · The paper itself

Abstract

unlabelledChildren may be at particular risk from toxic effects of mercury (Hg). Previous studies of hair (organic) and urine (inorganic) Hg levels in US children were unable to assess Hg levels while accounting for exposure to amalgam dental restorations. This analysis describes, over a 5-year period, levels and correlates/predictors of scalp hair (H-Hg) and urinary (U-Hg) mercury in 534 New England Children's Amalgam Trial (NECAT) participants, aged 6-10 years and without exposure to dental amalgam at baseline.

resultsMean H-Hg levels were between 0.3 and 0.4 microg/g over 5 years. 17-29% of children had H-Hg levels > or = 0.5 microg/g, and 5.0 to 8.5% of children had levels > or = 1 microg/g, in any given study year. In adjusted models, fish consumption frequency was the most robust predictor of high H-Hg. U-Hg mean levels were between 0.7 and 0.9 microg/g creatinine over two years. The percentage of those with U-Hg > or 2.3 microg/g creatinine ranged from 4% to 6%. Number of amalgam restorations had a significant dose-response relationship with U-Hg level. Daily gum chewing in the presence of amalgam was associated with high U-Hg.

Indexed as

AnimalsChewing GumChildDental AmalgamDietFemaleFishesHairHumansMaleMercuryChewing GumDental AmalgamMercury

Identifiers

PMID17961541
PMCPMC2464356
OpenAlexW2150462950

What OpenQuestion holds

Textmetadata
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.