Evidence map›Paper›PMID 23112900›Full record

ArticleInternational journal of preventive medicine2012

Environmental air pollution and acute cerebrovascular complications: an ecologic study in tehran, iran.

Seyed Massood Nabavi, Batoul Jafari, Mozhgan Sadat Jalali, Saharnaz Nedjat, Khosro Ashrafi, Alireza Salahesh

Abstract read
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Article in International journal of preventive medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
–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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Air Pollution and Ischaemic Stroke.Annals of Indian Academy of Neurology · 2022
    Article
  7. Modeling of the relationship between the environmental air pollution, clinical risk factors, and hospital mortality due to myocardial infarction in Isfahan, Iran.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2015
    Article
  8. Article
  9. Expression of cord blood cytochrome P450 1A1 gene according to the air pollution level of the maternal residence area.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2014
    Article
  10. Article
  11. Article
  12. Article
  13. Pollutants source control and health effects.Journal of environmental and public health · 2013
    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

6 authors.

Seyed Massood NabaviDepartment of Neurology, Shahed University, Tehran, Iran.
Batoul Jafari
Mozhgan Sadat Jalali
Saharnaz Nedjat
Khosro Ashrafi
Alireza Salahesh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn this study, we aimed to assess the association between air pollution and cerebrovascular complications in Tehran, one of the most air-polluted cities in the world, among different subgroups of patients with stroke in 2004.

methodsIn this ecologic study, we calculated the daily average levels of different air pollutants including CO, NO(X), SO(2), O(3), and PM(10) and also humidity and temperature on the day of stroke and 48 hours prior to stroke in 1 491 patients admitted with the diagnosis of stroke in eight referral hospitals in different areas of Tehran. Then, we evaluated the association between the rate of stroke admissions and the level of the selected pollutants, humidity, and temperature on the day of stroke and 48 hours prior to stroke among different subgroups of patients.

resultsThere was no significant association between the same-day level of the pollutants and the rate of stroke admissions, but an association was seen for their level 48 hours before stroke. These associations differed among different subgroups of age, sex, history of underlying diseases, and type of stroke. Same-day temperature had a reverse association in patients with hemorrhagic stroke and in patients without a history of heart disease or previous stroke. A direct significant association was seen for humidity level 48 hours before stroke in patients with a history of heart disease.

conclusionsIt is inferred that air pollution has a direct association with the incidence of stroke and these association differs among different subgroups of patients. The results of this study are not time-dependant and can be generalized to different times and regions. Moreover, these results may be useful for environmental health policy makers.

Indexed as

Air pollutioncerebrovascular complicationsCOhumidityNOxO3PM10SO2Tehrantemperature

Identifiers

PMID23112900
PMCPMC3483001

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Registered trials

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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.