Evidence map›Paper›PMID 31826013›Full record

ArticlePloS one2019

Air quality and obesity at older ages in China: The role of duration, severity and pollutants.

Nan Zhang, Lei Wang, Min Zhang, James Nazroo

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Exposure to PMInternational journal of environmental research and public health · 2021
    Pooled it
  3. Article
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  10. The neighbourhood environment and profiles of the metabolic syndrome.Environmental health : a global access science source · 2022
    Article
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  12. Review
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  15. Long-Term Exposure to Ambient PMFrontiers in endocrinology · 2021
    Article
  16. 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

4 authors at 3 institutions in 2 countries.

Nan ZhangSocial Statistics, Cathie Marsh Institute for Social Research (CMI), School of Social Sciences, The University of Manchester, Manchester, United Kingdom.ORCID 0000-0002-8032-275X
Lei WangKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China.
Min ZhangFaculty of Education, University of Cambridge, Cambridge, United Kingdom.
James NazrooManchester Institute for Collaborative Research on Ageing (MICRA), School of Social Sciences, The University of Manchester, Manchester, United Kingdom.
University of Manchester · GBChinese Academy of Sciences · CNUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPopulation ageing and air pollution have emerged as two of the most pressing challenges in China. However, little evidence has explored the impact of air pollution on obesity among older adults in China.

methodsThe China Health and Retirement Longitudinal Study-a nationally representative sample of middle-aged and older Chinese was linked to the air pollution data at the city level. Multilevel logistic models were fitted on obesity status among older people in relation to different air quality measures such as chronic exposures to severities of air pollution and pollutants.

resultsAir pollution was positively associated with increased risks of general obesity and abdominal obesity among older adults (N = 4,364) especially for those with disability. The marginal effects of average air quality index (AQI) on obesity suggest that one standard deviation increase in AQI is associated with increased risks of central obesity by 2.8% (95%CI 1.7% 3.9%) and abdominal obesity by 6.2% (95%CI 4.4% 8.0%). The risk of chronic exposures to light (and moderate), heavy and severe pollution on obesity elevated in a graded fashion in line with the level of pollution. Durations of exposure to PM2.5 and PM10 were significantly associated with increased risk of obesity among older people in China.

conclusionsChronic exposures to severe air pollution and certain pollutants such as PM2.5 and PM10 raise the risk of obesity among older people in China and the relationships were stronger for those with disability. Future policies that target these factors might provide a promising way of enhancing the physical health of older people.

Indexed as

AgedAir PollutantsAir PollutionChinaFemaleHumansLogistic ModelsLongitudinal StudiesMaleMiddle AgedObesityOdds RatioParticulate MatterRisk FactorsAir PollutantsParticulate Matter

Identifiers

PMID31826013
PMCPMC6905559
OpenAlexW2995305717

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.