Evidence map›Paper›PMID 38931209›Full record

SynthesisNutrients2024

The Prevalence of Anemia among Pregnant Women in China: A Systematic Review and Meta-Analysis.

Yalin Zhou, Ying Lyu, Wanyun Ye, Hanxu Shi, Yile Peng, Zhang Wen, Anuradha Narayan, Xiaona Huang, Suying Chang, Yuning Yang and 1 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Predictive Factors for Small Head Circumference Among Pregnant Women with Third-Trimester Anemia.International journal of environmental research and public health · 2026
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  3. Review
  4. Observational
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  11. Article
  12. Observational
  13. Article
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  16. Observational
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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.

Yalin ZhouDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.ORCID 0000-0002-9085-1487
Ying LyuDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.
Wanyun YeDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.
Hanxu ShiDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.
Yile PengDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.
Zhang WenDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.
Anuradha NarayanNutrition and Child Development Section, UNICEF Headquarters, 3 United Nations Plz, New York, NY 10017, USA.ORCID 0000-0002-4991-1361
Xiaona HuangChild Health and Development Section, UNICEF Office for China, NO.12 Sanlitun Road, Chaoyang District, Beijing 100600, China.
Suying ChangChild Health and Development Section, UNICEF Office for China, NO.12 Sanlitun Road, Chaoyang District, Beijing 100600, China.
Yuning YangChild Health and Development Section, UNICEF Office for China, NO.12 Sanlitun Road, Chaoyang District, Beijing 100600, China.ORCID 0000-0002-9147-613X
Yajun XuDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Haidian District, Beijing 100083, China.ORCID 0000-0001-5791-4629

Funding

UNICEF Office for China 2022-702-12-MN-4.1
6 · The paper itself

Abstract

The systematic review and meta-analysis were conducted to ascertain the prevalence of anemia, iron deficiency (ID), and iron deficiency anemia (IDA) among Chinese pregnant women. A total of 722 articles on maternal anemia during pregnancy published between January 2010 and December 2020 were compiled, and a systematic review and meta-analysis were conducted on 57 eligible studies including 1,376,204 pregnant women to ascertain the prevalence of anemia and the prevalence in different subgroups. The results showed that the prevalence of anemia, ID, and IDA among pregnant women in China were 30.7% (95% CI: 26.6%, 34.7%), 45.6% (95% CI: 37.0%, 54.2%), and 17.3% (95% CI: 13.9%, 20.7%), respectively. All prevalence increased with the progression of the pregnancy. There were sizable regional variations in the prevalence of anemia, ID, and IDA. Generally, lower prevalence was observed in the economically more advanced eastern region of the country, while the prevalence of ID was higher in the eastern region than that in the western region. The prevalence of anemia and IDA in rural areas was higher than that in urban areas, but ID prevalence was higher in urban areas. In conclusion, the regional differences and urban-rural disparities in the prevalence of anemia indicate the need for more context-specific interventions to prevent and treat anemia. It was found that dietary factors were one of the major causes of anemia, and iron-containing supplements and nutrition counseling could be effective interventions to reduce the prevalence of anemia, ID, and IDA among Chinese pregnant women.

Indexed as

AnemiaAnemia, Iron-DeficiencyAdultChinaFemaleHumansPregnancyPregnancy Complications, HematologicPregnant PeoplePrevalenceRural PopulationUrban PopulationanemiaChinairon deficiencyiron deficiency anemiapregnant women

Identifiers

PMID38931209
PMCPMC11206842

What OpenQuestion holds

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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.