Evidence map›Paper›PMID 18795162›Full record

ArticleEnvironmental health perspectives2008

The effects of air pollution on mortality in socially deprived urban areas in Hong Kong, China.

Chit-Ming Wong, Chun-Quan Ou, King-Pan Chan, Yuen-Kwan Chau, Thuan-Quoc Thach, Lin Yang, Roger Yat-Nork Chung, Graham Neil Thomas, Joseph Sriyal Malik Peiris, Tze-Wai Wong and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 5 pooled it
6.3field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 5 syntheses or guidelines pooled it, 142 citations in OpenAlex.

  1. Pooled it
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  12. Ambient air pollution and mortality: The role of socioeconomic conditions.Environmental epidemiology (Philadelphia, Pa.) · 2024
    Article
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  15. Review
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  18. Observational
  19. Clustering of Socioeconomic Data in Hong Kong for Planning Better Community Health Protection.International journal of environmental research and public health · 2021
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 2 countries.

Chit-Ming WongDepartment of Community Medicine, School of Public Health, The University of Hong Kong, Hong Kong, China.
Chun-Quan Ou
King-Pan Chan
Yuen-Kwan Chau
Thuan-Quoc Thach
Lin Yang
Roger Yat-Nork Chung
Graham Neil Thomas
Joseph Sriyal Malik Peiris
Tze-Wai Wong
Anthony Johnson Hedley
Tai-Hing Lam
University of Hong Kong · HKChinese University of Hong Kong · HKSouthern Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPoverty is a major determinant of population health, but little is known about its role in modifying air pollution effects.

objectivesWe set out to examine whether people residing in socially deprived communities are at higher mortality risk from ambient air pollution.

methodsThis study included 209 tertiary planning units (TPUs), the smallest units for town planning in the Special Administrative Region of Hong Kong, China. The socioeconomic status of each TPU was measured by a social deprivation index (SDI) derived from the proportions of the population with a) unemployment, b) monthly household income < US$250, c) no schooling at all, d) one-person household, e) never-married status, and f ) subtenancy, from the 2001 Population Census. TPUs were classified into three levels of SDI: low, middle, and high. We performed time-series analysis with Poisson regression to examine the association between changes in daily concentrations of ambient air pollution and daily number of deaths in each SDI group for the period from January 1996 to December 2002. We evaluated the differences in pollution effects between different SDI groups using a case-only approach with logistic regression.

resultsWe found significant associations of nitrogen dioxide, sulfur dioxide, particulate matter with aerodynamic diameter < 10 mum, and ozone with all nonaccidental and cardiovascular mortality in areas of middle or high SDI (p < 0.05). Health outcomes, measured as all nonaccidental, cardiovascular, and respiratory mortality, in people residing in high SDI areas were more strongly associated with SO(2) and NO(2) compared with those in middle or low SDI areas.

conclusionsNeighborhood socioeconomic deprivation increases mortality risks associated with air pollution.

Indexed as

Air PollutionMortalitySocial ClassUrban HealthHong KongHumansair pollutioncase-only approachdeprivationeffect modificationHong Kongmortalitytime-series analysis

Identifiers

PMID18795162
PMCPMC2535621
OpenAlexW2044236798

What OpenQuestion holds

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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.