Evidence map›Paper›PMID 29706621›Full record

ArticleJournal of exposure science & environmental epidemiology2019

Childhood lead biokinetics and associations with age among a group of lead-poisoned children in China.

Aaron J Specht, Marc Weisskopf, Linda H Nie

Abstract read
In one paragraph

Article in Journal of exposure science & environmental epidemiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Observed and predicted long-term clearance of lead from the blood of children.Journal of toxicology and environmental health. Part A · 2026
    Article
  4. The effect of chelation on bone Pb stores in Pb poisoned children.Journal of exposure science & environmental epidemiology · 2025
    Article
  5. Article
  6. Bone lead measurements of live condors in field to assess cumulative lead exposure.Environmental science and pollution research international · 2024
    Article
  7. Article
  8. Article
  9. 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

3 authors.

Aaron J SpechtSchool of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA.
Marc WeisskopfHarvard T.H. Chan School of Public Health, Boston, Massachusetts, 02215, USA.
Linda H NieSchool of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA. hnie@purdue.edu.

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI JAIME ELIZABETH HART · 1985 to 2026
$44.6M
Validation of Portable XRF for In Vivo Measurement of Heavy Metal ExposuresR21ES024700 · NIEHS · RUSH UNIVERSITY MEDICAL CENTER · PI NIE, LINDA H, WEISSKOPF, MARC G · 2015 to 2018
$712k
NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R21 ES024700
6 · The paper itself

Abstract

Childhood lead exposure has been shown to have a significant effect on neurodevelopment. Many of the biokinetics involved with lead biomarkers in children still remain unknown. Two hundred fifty (157 in the exposed group and 93 controls) children were enrolled in our study and lead exposed children returned for multiple visits for measurement of blood and bone lead and chelation treatment. We demonstrated that the correlation between blood and bone lead increased with subsequent visits. We calculated the blood lead half-life for 50 patients, and found a significant (p-value < 0.001) positive correlation with age. For ages 1-3 years (N = 17), the blood lead half-life was found to be 6.9 ± 4.0 days and for 3+ years it was found to be (N = 33) 19.3 ± 14.1 days. In conclusion, the turnover of lead in children is faster than in adults. Our results indicate that blood lead is a more acute biomarker of exposure than previously thought, which will impact studies of children's health using blood lead as a biomarker.

Indexed as

Environmental ExposureAdultBiomarkersCase-Control StudiesChildChild, PreschoolChinaFemaleHalf-LifeHumansInfantLeadLead PoisoningMaleYoung AdultBiomarkersLeadbiomarkersblood leadbone leadexposure assessmenttoxicokinetics

Identifiers

PMID29706621
PMCPMC6207487

What OpenQuestion holds

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LicenceTDM
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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.