Evidence map›Paper›PMID 32285761›Full record

ArticlePublic health nutrition2020

Body iron and lead status in early childhood and its effects on development and cognition: a longitudinal study from urban Vellore.

Beena Koshy, Manikandan Srinivasan, Susan Mary Zachariah, Arun S Karthikeyan, Reeba Roshan, Anuradha Bose, Venkata Raghava Mohan, Sushil John, Karthikeyan Ramanujam, Jayaprakash Muliyil and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Public health nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  7. Article
  8. Blood Lead Monitoring in a Former Mining Area in Euskirchen, Germany-Volunteers across the Entire Population.International journal of environmental research and public health · 2022
    Article
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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

11 authors at 1 institution in 1 country.

Beena KoshyDevelopmental Paediatrics Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.ORCID 0000-0002-9058-1392
Manikandan SrinivasanWellcome Research Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Susan Mary ZachariahDevelopmental Paediatrics Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Arun S KarthikeyanWellcome Research Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Reeba RoshanDevelopmental Paediatrics Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Anuradha BoseCommunity Health, Christian Medical College, Vellore, Tamil Nadu632004, India.
Venkata Raghava MohanCommunity Health, Christian Medical College, Vellore, Tamil Nadu632004, India.
Sushil JohnLow Cost Effective Care Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Karthikeyan RamanujamWellcome Research Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Jayaprakash MuliyilWellcome Research Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Gagandeep KangWellcome Research Unit, Christian Medical College, Vellore, Tamil Nadu632004, India.
Christian Medical College, Vellore · IN

Funding

FIC NIH HHS Y99 TW999999
6 · The paper itself

Abstract

objectiveEarly childhood factors can have persisting effects on development and cognition in children. We propose to explore the trends of Fe deficiency and Pb toxicity in early childhood and their association with child development at 2 years of age and cognition at 5 years.

designLongitudinal birth cohort study.

settingUrban slum, Vellore, India.

participantsChildren enrolled at birth were followed up regularly in the first 2 years with developmental and cognitive assessments at 2 and 5 years of age, respectively.

resultsThe birth cohort enrolled 251 children with 228 children followed up at 2 years and 212 at 5 years of age. Fe deficiency (ID) was highest at 15 months of age and improved subsequently at 24 months. Blood Pb levels (BLL) remained high at all age groups with an increasing trend with age; 97 % at 36 months having high BLL. Persistent high mean BLL at 15 and 24 months had negative association with both cognition and expressive language raw scores of 24 months, while high mean BLL at 15, 24 and 36 months had no significant association with any of the domains of cognition at 5 years of age. Early childhood cumulative body Fe status at 7, 15 and 24 months did not show any association with child development at 2 years, but was associated with verbal, performance and processing speed components of cognition at 5 years.

conclusionsOptimising body Fe status and limiting Pb exposure in early childhood can augment child development and school entry cognition.

Indexed as

Child DevelopmentCognitionChild LanguageChild, PreschoolFemaleHumansIndiaInfantInfant, NewbornIronLeadLongitudinal StudiesMalePoverty AreasUrban PopulationIronLeadChild developmentChild nutritionCognitionEarly childhoodIron deficiencyLead toxicity

Identifiers

PMID32285761
PMCPMC7348694
OpenAlexW3015623143

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.