Evidence map›Paper›PMID 34642490›Full record

ArticleNature medicine2021

Anemia prevalence in women of reproductive age in low- and middle-income countries between 2000 and 2018.

Damaris Kinyoki, Aaron E Osgood-Zimmerman, Natalia V Bhattacharjee, Local Burden of Disease Anaemia Collaborators, Nicholas J Kassebaum, Simon I Hay

Open access · hybridAbstract read
In one paragraph

Article in Nature medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed, 5 pooled it
17.7field-weighted citation impact, top 1% 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

116 citing papers in PubMed, 5 syntheses or guidelines pooled it, 188 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. FIGO good practice recommendations on anemia in pregnancy, to reduce the incidence and impact of postpartum hemorrhage (PPH).International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 20 institutions in 69 countries.

Damaris KinyokiInstitute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.
Aaron E Osgood-ZimmermanInstitute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.
Natalia V BhattacharjeeInstitute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.
Local Burden of Disease Anaemia Collaborators
Nicholas J KassebaumInstitute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.
Simon I HayInstitute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA. sihay@uw.edu.ORCID http://orcid.org/0000-0002-0611-7272
University of Washington · USKermanshah University of Medical Sciences · IRManipal Academy of Higher Education · INIran University of Medical Sciences · IRTehran University of Medical Sciences · IRCairo University · EGArba Minch University · ETHaramaya University · ETMekelle University · ETTabriz University of Medical Sciences · IRUniversity of Gondar · ETBahir Dar University · ETAdigrat University · ETArak University of Medical Sciences · IRDuy Tan University · VNShahid Beheshti University of Medical Sciences · IRAksum University · ETBabol University of Medical Sciences · IRUniversidade do Porto · PTCarol Davila University of Medicine and Pharmacy · RO

Funding

Cancer Research UK 16896Wellcome Trust
6 · The paper itself

Abstract

Anemia is a globally widespread condition in women and is associated with reduced economic productivity and increased mortality worldwide. Here we map annual 2000-2018 geospatial estimates of anemia prevalence in women of reproductive age (15-49 years) across 82 low- and middle-income countries (LMICs), stratify anemia by severity and aggregate results to policy-relevant administrative and national levels. Additionally, we provide subnational disparity analyses to provide a comprehensive overview of anemia prevalence inequalities within these countries and predict progress toward the World Health Organization's Global Nutrition Target (WHO GNT) to reduce anemia by half by 2030. Our results demonstrate widespread moderate improvements in overall anemia prevalence but identify only three LMICs with a high probability of achieving the WHO GNT by 2030 at a national scale, and no LMIC is expected to achieve the target in all their subnational administrative units. Our maps show where large within-country disparities occur, as well as areas likely to fall short of the WHO GNT, offering precision public health tools so that adequate resource allocation and subsequent interventions can be targeted to the most vulnerable populations.

Indexed as

Nutritional StatusAdolescentAdultAnemiaDeveloping CountriesFemaleGlobal HealthHumansMiddle AgedPovertyPrevalenceYoung Adult

Identifiers

PMID34642490
PMCPMC8516651
OpenAlexW3206918078

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.