Evidence map›Paper›PMID 41127845›Full record

ArticleEnvironment & health (Washington, D.C.)2025

Effects of Residential Greenness on Influenza Virus Infection in 1,012,430 People: A Nationwide Individual-Level Study in China.

Shimeng Cai, Xin Liu, Lei Yang, Shuyi Ji, Shigui Yang, Xiangming Xiao, Dayan Wang, Yuelong Shu, Bin Zhu, Hao Lei

Abstract read
In one paragraph

Article in Environment & health (Washington, D.C.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. Residential Greenness and Incident Chronic Rhinosinusitis After SARS-CoV-2 Infection in South Korea: A Nationwide Cohort Study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
    Article
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

10 authors.

Shimeng CaiSchool of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China.
Xin LiuSchool of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China.
Lei YangNational Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health Commission, Beijing 102206, China.
Shuyi JiSchool of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China.
Shigui YangSchool of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China.
Xiangming XiaoSchool of Biological Sciences, University of Oklahoma, Norman, Oklahoma 73019, United States.
Dayan WangNational Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health Commission, Beijing 102206, China.
Yuelong ShuKey Laboratory of Pathogen Infection Prevention and Control (MOE), State Key Laboratory of Respiratory Health and Multimorbidity, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, China.
Bin ZhuSchool of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China.
Hao LeiSchool of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, Zhejiang, China.ORCID https://orcid.org/0000-0002-1850-7040

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Residential greenness, a fundamental component of urban design, could contribute to the prevention of respiratory infections via several potential mechanisms. However, the health benefits of greenness on influenza epidemics in real world are not as clear. In this cross-sectional, associational study, a series of logistic models were constructed to assess the association between individual-level residential greenness exposure, measured by the normalized difference vegetation index (NDVI), and the risk of influenza virus infection in China via 8 years of influenza surveillance data. From 2010 to 2017, 3,131,881 influenza-like illness (ILI) cases were tested for influenza, and 1,012,430 (32.3%) participants with detailed building-level residential addresses were included in this study. Overall, a protective effect of residential greenness was observed, with 2.6% lower odds of influenza virus infection per one-quartile increase in the NDVI (odds ratio (OR) = 0.974, 95% confidence interval (CI): 0.963-0.985). Stratified analyses indicated that the protective effects of residential greenness were strongest among adults aged ≥60 years (OR = 0.853, 95% CI: 0.814-0.894), but among school-aged children, the association was positive. There were no protective effects at other city scales except in megacities (OR = 0.907, 95% CI: 0.886-0.930). Given the rapid aging and urbanization process in China, policies aimed at optimizing the allocation and design of green spaces might help reduce respiratory infection transmission.

Indexed as

environmental exposureepidemiologygreennessinfluenzaNDVI

Identifiers

PMID41127845
PMCPMC12538324

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.