Evidence map›Paper›PMID 34110593›Full record

ArticleWorld journal of pediatrics : WJP2021

Increasing prevalence and influencing factors of childhood asthma: a cross-sectional study in Shanghai, China.

Ya-Bin Hu, Yi-Ting Chen, Shi-Jian Liu, Fan Jiang, Mei-Qin Wu, Chong-Huai Yan, Jian-Guo Tan, Guang-Jun Yu, Yi Hu, Yong Yin and 3 more

Abstract read
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In one paragraph

Article in World journal of pediatrics : WJP, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. [Advances in growth impairment associated with pediatric respiratory diseases].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2026
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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

13 authors at 5 institutions in 2 countries.

Ya-Bin Hu *Department of Clinical Epidemiology and Biostatistics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Yi-Ting Chen *School of Public Health, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Road, Huangpu, Shanghai, 200025, China.
Shi-Jian LiuDepartment of Clinical Epidemiology and Biostatistics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Fan JiangDepartment of Developmental and Behavioral Pediatrics, Pediatric Translational Medicine Institution, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Mei-Qin WuMOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Chong-Huai YanMOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Jian-Guo TanShanghai Key Laboratory of Meteorology and Health (Shanghai Meteorological Service), Shanghai, China.
Guang-Jun YuCenter for Biomedical Informatics, Shanghai Children's Hospital, Shanghai, China.
Yi HuCenter for Biomedical Informatics, Shanghai Children's Hospital, Shanghai, China.
Yong YinDepartment of Respiratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Jia-Jie QuShanghai Municipal Education Commission, Shanghai, China.
Sheng-Hui LiSchool of Public Health, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Road, Huangpu, Shanghai, 200025, China. lsh9907@163.com.
Shi-Lu TongDepartment of Clinical Epidemiology and Biostatistics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.ORCID http://orcid.org/0000-0001-9579-6889
Shanghai Jiao Tong University · CNQueensland University of Technology · AUShanghai Children's Hospital · CNShanghai Meteorological Bureau · CNShanghai Municipal Education Commission · CN

Funding

National Natural Science Foundation of China 81874266, 81673183Science and Technology Commission of Shanghai Municipality 18411951600
6 · The paper itself

Abstract

backgroundAsthma has been a global problem, especially in children. We aim to evaluate the contemporary prevalence and influencing factors of asthma among children aged 3-7 years in Shanghai, China.

methodsA random sample of preschool children was included in this study. The International Study of Asthma and Allergies in Childhood questionnaire was adopted to assess the childhood asthma. Multivariable logistic regression models were used to evaluate the associations between independent variables and childhood asthma.

resultsOf 6389 preschool children who were invited to take part in this study, 6163 (response rate: 96.5%) completed the questionnaire and were included in the analysis. The overall prevalence of asthma was 14.6% which increased more than six folds from 2.1% in 1990. Being male, younger age, preterm delivery, being born in spring or autumn, being delivered by elective cesarean section without indication, miscarriage, high socioeconomic status, having allergy history, and exposure to passive smoking, latex paint, and dust were potential risk factors for childhood asthma. Spending more time outdoors (> 30 min/day), having indoor plants, and cleaning rooms more frequently were potential protective factors.

conclusionsThe prevalence of childhood asthma in Shanghai has increased dramatically during the past three decades. The findings about risk and protective factors of childhood asthma could be used to develop appropriate strategies to prevent and control childhood asthma in Shanghai and in other similar metropolitan cities.

Indexed as

AsthmaCesarean SectionChild, PreschoolChinaCross-Sectional StudiesFemaleHumansInfant, NewbornMalePregnancyPrevalenceAsthmaChildrenPrevalenceRisk/protective factors

Identifiers

PMID34110593
OpenAlexW3171436631

What OpenQuestion holds

Textmetadata
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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.