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The impact of ambient air pollution on suicide mortality: a case-crossover study in Guangzhou, China

Overview of attention for article published in Environmental Health, August 2016
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (92nd percentile)

Mentioned by

2 news outlets
7 tweeters


61 Dimensions

Readers on

100 Mendeley
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The impact of ambient air pollution on suicide mortality: a case-crossover study in Guangzhou, China
Published in
Environmental Health, August 2016
DOI 10.1186/s12940-016-0177-1
Pubmed ID

Guo-Zhen Lin, Li, Yun-Feng Song, Ying-Xue Zhou, Shuang-Quan Shen, Chun-Quan Ou


Preventing suicide is a global imperative. Although the effects of social and individual risk factors of suicide have been widely investigated, evidence of environmental effects of exposure to air pollution is scarce. We investigated the effects of ambient air pollution on suicide mortality in Guangzhou, China during 2003-2012. A conditional logistic regression analysis with a time-stratified case-crossover design was performed to assess the effects of daily exposure to three standard air pollutants, including particulate matter less than 10 μm in aerodynamic diameter (PM10), sulphur dioxide (SO2) and nitrogen dioxide (NO2), on suicide mortality, after adjusting for the confounding effects of daily mean temperature, relative humidity, atmospheric pressure and sunshine duration. Further analyses were stratified by season, gender, age group, educational attainment and suicide type. Between 2003 and 2012, there were a total of 1 550 registered suicide deaths in Guangzhou. A significant increase in suicide risk were associated with interquartile-range increases in the concentration of air pollutant, with an odds ratio of 1.13 (95 % confidence interval (CI): 1.01, 1.27) and 1.15 (95 % CI: 1.03, 1.28) for PM10 and NO2 at lag 02, and 1.12 (95 % CI: 1.02, 1.23) for SO2 at lag 01, respectively. The suicide risks related to air pollution for males and people with high education level were higher than for females and those with low education level, respectively. Significant air pollution effects were found on violent suicide mortality and in cool season but not on non-violent suicide mortality or in warm season. Suicide risk was positively associated with ambient air pollution levels. This finding would provide important information for the health impact assessment of air pollution and for the development of effective strategies and interventions for the prevention of suicide.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 100 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 1%
Unknown 99 99%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 15 15%
Researcher 14 14%
Student > Master 12 12%
Student > Ph. D. Student 11 11%
Student > Doctoral Student 5 5%
Other 17 17%
Unknown 26 26%
Readers by discipline Count As %
Medicine and Dentistry 18 18%
Environmental Science 12 12%
Engineering 10 10%
Social Sciences 7 7%
Economics, Econometrics and Finance 4 4%
Other 21 21%
Unknown 28 28%

Attention Score in Context

This research output has an Altmetric Attention Score of 26. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 April 2018.
All research outputs
of 20,568,640 outputs
Outputs from Environmental Health
of 1,415 outputs
Outputs of similar age
of 282,948 outputs
Outputs of similar age from Environmental Health
of 1 outputs
Altmetric has tracked 20,568,640 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 94th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,415 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 30.0. This one has done well, scoring higher than 83% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 282,948 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 92% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them