Evidence map›Paper›PMID 42393619›Full record

ArticleBMC public health2026

Exposure to air pollutants is associated with adverse changes in hemoglobin trajectories and an increased risk of anemia in children and adolescents.

Keyang Zheng, Fengyun Zhang, Liting Chu, Yanting Yang, Lijing Sun, Yuting Huang, Shuangxiao Qu, Shenglei Huang, Wenjuan Qi, Dongling Yang and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Keyang ZhengDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Fengyun ZhangDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Liting ChuDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Yanting YangDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Lijing SunDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Yuting HuangDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Shuangxiao QuDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Shenglei HuangDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Wenjuan QiDivision of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China.
Dongling Yang *Division of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China. yangdongling@scdc.sh.cn.
Chunyan Luo *Division of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, 200336, China. luochunyan_ess@163.com.

Funding

The Sixth Round of Shanghai Public Health Three Year Action Project (2023-2025) GWVI-7
6 · The paper itself

Abstract

backgroundAir pollution is associated with anemia in children, however, longitudinal data supporting this association are insufficient.

methodsFrom 2019 to 2023, we conducted a dynamic cohort study involving 33,900 participants from 119 primary and secondary schools across 16 districts in Shanghai. We obtained the daily average concentrations of five air pollutants (PM

resultsAt the baseline survey, 3,213 students (9.48%) were identified as anemic, with a higher proportion of girls (63.8%). During an average follow-up period of 3.16 years, 1,685 participants (4.9%) were observed to develop anemia. Children's hemoglobin levels showed three different trajectory patterns throughout the study period. Exposure to PM

conclusionsLong-term exposure to air pollutants is associated with an increased burden of anemia in children and adolescents, and attention should be focused on vulnerable groups such as girls and underweight children.

Indexed as

Air PollutantsAir PollutionAnemiaEnvironmental ExposureHemoglobinsAdolescentChildChinaCohort StudiesFemaleHumansLongitudinal StudiesMaleParticulate MatterAir PollutantsHemoglobinsParticulate MatterAdolescentAir pollutionAnemiaChildrenHemoglobin

Identifiers

PMID42393619
PMCPMC13644236

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.