Evidence map›Paper›PMID 32228513›Full record

ArticleBMC public health2020

Comparing hemoglobin distributions between population-based surveys matched by country and time.

Daniel J Hruschka, Anne M Williams, Zuguo Mei, Eva Leidman, Parminder S Suchdev, Melissa F Young, Sorrel Namaste

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In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. The Prevalence of Nutritional Anaemia in Brazilian Pregnant Women: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2023
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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.

Daniel J HruschkaSchool of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA. Daniel.Hruschka@asu.edu.
Anne M WilliamsCenters for Disease Control and Prevention, Atlanta, GA, USA.
Zuguo MeiCenters for Disease Control and Prevention, Atlanta, GA, USA.
Eva LeidmanCenters for Disease Control and Prevention, Atlanta, GA, USA.
Parminder S SuchdevCenters for Disease Control and Prevention, Atlanta, GA, USA.
Melissa F YoungRollins School of Public Health, Emory University, Atlanta, GA, USA.
Sorrel NamasteThe DHS Program, ICF International, Rockville, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundValid measurement of hemoglobin is important for tracking and targeting interventions. This study compares hemoglobin distributions between surveys matched by country and time from The Demographic and Health Survey (DHS) Program and the Biomarkers Reflecting Inflammation and Nutritional Determinants of Anemia (BRINDA) project.

methodsFour pairs of nationally representative surveys measuring hemoglobin using HemoCue® with capillary (DHS) or venous (BRINDA) blood were matched by country and time. Data included 17,719 children (6-59 months) and 21,594 non-pregnant women (15-49 y). Across paired surveys, we compared distributional statistics and anemia prevalence.

resultsSurveys from three of the four countries showed substantial differences in anemia estimates (9 to 31 percentage point differences) which were consistently lower in BRINDA compared to DHS (2 to 31 points for children, 1 to 16 points for women).

conclusionWe identify substantial differences in anemia estimates from surveys of similar populations. Further work is needed to identify the cause of these differences to improve the robustness of anemia estimates for comparing populations and tracking improvements over time.

Indexed as

AdolescentAdultAnemiaBiomarkersChild, PreschoolDemographyFemaleGlobal HealthHemoglobinsHumansInfantMaleMiddle AgedPopulation HealthPrevalenceYoung AdultBiomarkersHemoglobinsAnemiaBiomarkers reflecting inflammation and nutritional determinants of AnemiaBlood collectionData qualityDemographic and health surveysHemoglobinMicronutrient surveysNutrition surveys

Identifiers

PMID32228513
PMCPMC7106890

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Registered trials

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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.