Evidence map›Paper›PMID 19345261›Full record

ArticleNeurotoxicology and teratology

Cognitive development and low-level lead exposure in poly-drug exposed children.

Meeyoung O Min, Lynn T Singer, H Lester Kirchner, Sonia Minnes, Elizabeth Short, Zehra Hussain, Suchitra Nelson

Abstract read
In one paragraph

Article in Neurotoxicology and teratology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 3 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

34 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. A Meta-Analysis of Stressors from the Total Environment Associated with Children's General Cognitive Ability.International journal of environmental research and public health · 2020
    Pooled it
  3. Pooled it
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  17. Response letter to Qiu et al.Drug and alcohol dependence · 2020
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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

7 authors.

Meeyoung O MinCase Western Reserve University School of Medicine, Department of Pediatrics, Cleveland, OH 44106-7164, USA. meeyoung.min@case.edu
Lynn T Singer
H Lester Kirchner
Sonia Minnes
Elizabeth Short
Zehra Hussain
Suchitra Nelson

Funding

The Effects of Prenatal Cocaine Exposure in Emerging AdulthoodR01DA007957 · NIDA · CASE WESTERN RESERVE UNIVERSITY · PI MINNES, SONIA · 1994 to 2018
$14.1M
IRON DEFICIENCY ANEMIA IN COCAINE EXPOSED CHILDRENR03DA011764 · NIDA · CASE WESTERN RESERVE UNIVERSITY · PI NELSON, SUCHITRA S · 1998 to 1998
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NIDA NIH HHS R01 DA007957NIDA NIH HHS R01-DA07957NIDA NIH HHS R03-DA11764
6 · The paper itself

Abstract

The impact of early postnatal lead exposure measured at age 4 on children's IQ and academic achievement at and 11 years of age was examined. The sample consisted of 278 inner-city, primarily African American children who were polydrug exposed prenatally. Regression analyses indicated a linear effect of lead exposure on outcomes and no moderating effects of polydrug exposure. An IQ loss of about 4.1-5.4 Full Scale IQ points was estimated for each 10 microg/dL increase in blood lead level at ages 4, 9, and 11 years as a function of blood lead level at age 4. Decrements in scores on tests of non-verbal reasoning were consistently associated with higher lead levels at age 4, while verbal decrements became apparent only at age 11. Lower reading summary scores at 9 and 11 years were consistently associated with higher lead exposure, while decrements in mathematics were not apparent until 11 years. Subgroup analyses on children with blood lead levels <10 microg/dL showed detrimental lead effects even at the 5 microg/dL level, providing additional evidence of adverse effects occurring at blood lead levels below the current 10 microg/dL public health blood lead action level.

Indexed as

Prenatal Exposure Delayed EffectsAge DistributionBlack or African AmericanChild, PreschoolCognitionCognition DisordersDevelopmental DisabilitiesDrug InteractionsEnvironmental ExposureFemaleHumansIllicit DrugsIntellectual DisabilityIntelligenceLanguage Development DisordersLeadIllicit DrugsLead

Identifiers

PMID19345261
PMCPMC2693288

What OpenQuestion holds

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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.