Evidence map›Paper›PMID 23591685›Full record

ArticleScientific reports2013

The distribution of haemoglobin C and its prevalence in newborns in Africa.

Frédéric B Piel, Rosalind E Howes, Anand P Patil, Oscar A Nyangiri, Peter W Gething, Samir Bhatt, Thomas N Williams, David J Weatherall, Simon I Hay

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

63 citing papers in PubMed, 130 citations in OpenAlex.

  1. Trial
  2. Article
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  4. Review
  5. Article
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  8. Article
  9. Epidemiologic profile of hemoglobinopathies in Benin.Hematology, transfusion and cell therapy · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
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  15. Article
  16. A novel locus inFrontiers in genetics · 2024
    Article
  17. Article
  18. [Hemoglobin C Variant Affecting Glycated Hemoglobin Test Results: A Rare Case Report].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2023
    Article
  19. Review
  20. Article

3 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 2 countries.

Frédéric B PielSpatial Ecology and Epidemiology Group, Tinbergen Building, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, United Kingdom. fred.piel@zoo.ox.ac.uk
Rosalind E Howes
Anand P Patil
Oscar A Nyangiri
Peter W Gething
Samir Bhatt
Thomas N Williams
David J Weatherall
Simon I Hay
University of Oxford · GBKenya Medical Research Institute · KEJohn Radcliffe Hospital · GBOxford Research Group · GB

Funding

Medical Research Council MC_UU_12009/13Wellcome Trust 085406Wellcome Trust 091758Wellcome Trust 092654Wellcome Trust 095066
6 · The paper itself

Abstract

Haemoglobin C (HbC) is one of the commonest structural haemoglobin variants in human populations. Although HbC causes mild clinical complications, its diagnosis and genetic counselling are important to prevent inheritance with other haemoglobinopathies. Little is known about its contemporary distribution and the number of newborns affected. We assembled a global database of population surveys. We then used a Bayesian geostatistical model to create maps of HbC frequency across Africa and paired our predictions with high-resolution demographics to calculate heterozygous (AC) and homozygous (CC) newborn estimates and their associated uncertainty. Data were too sparse outside Africa for this methodology to be applied. The highest frequencies were found in West Africa but HbC was commonly found in other parts of the continent. The expected annual numbers of AC and CC newborns in Africa were 672,117 (interquartile range (IQR): 642,116-705,163) and 28,703 (IQR: 26,027-31,958), respectively. These numbers are about two times previous estimates.

Indexed as

Proportional Hazards ModelsAfricaFemaleHemoglobin CHemoglobin C DiseaseHumansInfant, NewbornMalePrevalenceRisk FactorsHemoglobin C

Identifiers

PMID23591685
PMCPMC3628164
OpenAlexW2002167881

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.