Associations of short-term exposure to air pollution with respiratory hospital admissions in Arak, Iran

Vahedian, Mostafa; Khanjani, Narges; Mirzaee, Moghaddameh; Koolivand, Ali

doi:10.1186/s40201-017-0277-z

Cited by 43 publications

(32 citation statements)

References 52 publications

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“…The adverse effects of air pol lution on cardiovascular health have been shown in some observational epidemiological studies. However, there IJOMEH 2018;31(4) 10 from Panama, results showed the effect of PM 10 on cardio vascular deaths in total increases by 5.8% (95% CI: 1.9-9.7) after one month's delay [40]. However, in another study conducted by Braga et al, in 10 US cities, results showed that cardiovascular deaths in contrary to respiratory deaths, which were affected by the level of PM 10 2 days before (time lag 2), were af fected by the level of PM 10 on the same day as well [43].…”

Section: Discussionmentioning

confidence: 99%

“…There was also a positive rela tion between particulate matter below 10 μm (PM 10 ) and death from coronary heart disease in the ecological study done by Maheswaran et al in Sheffield, England [14]. 10 ), nitrogen dioxide (NO 2 ), carbon monoxide (CO) and sulfur dioxide (SO 2 ). Particulate matter below 10 μm was the only type of par ticulate matter, which had been recorded at the air quality monitoring stations.…”

Section: Introductionmentioning

confidence: 96%

“…The World Health Organization estimates that air pollution is responsible for more than 1 million premature deaths each year across the world [7]. Recent studies conducted in relation to air pollution have shown that not only West ern Europe and North America but also developing coun tries are facing this health problem [8][9][10][11]. And it is pos sible that there is a relationship between chronic exposure to air pollution and coronary artery diseases [12].…”

Section: Introductionmentioning

confidence: 99%

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Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Dastoorpoor

Khanjani

Idani

et al. 2018

Int J Occup Med Environ Health

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Objectives: There are few studies about the association between breathing polluted air and increased risk of cardiovascular diseases and cardiac death in the Middle East. This study has aimed to investigate the relation between air pollutants and cardio vascular mortality (based on the International Statistical Classification of Diseases and Related Health Problems, 10th revision) in Ahvaz. Material and Methods: In this ecological study, the data about cardiovascular disease mortality and air pollutants from March 2008 until March 2015 was inquired from the Ahvaz City Authority and the Khuzestan Province Environmental Protec tion Agency. The quasi-Poisson, second degree polynomial constrained, distributed lag model; using single and cumulative lag structures, adjusted by trend, seasonality, temperature, relative humidity, weekdays and holidays was used for the data analysis purposes. Results: Findings indicated a direct significant relation between an interquartile range (IQR) increase in ozone and cardiovascular deaths among men after 3 days' lag. There was also a significant relation between an IQR increase in particulate matter below 10 μm and cardiovascular deaths for all people, over 60 years old and under 18 years old after 3 and 13 days' lags. There was a significant relation between an IQR increase in nitrogen dioxide and carbon monoxide, and cardiovascular deaths in the case of under 18-year-olds (in the lag 11) and over 60-year-olds (in the lag 9), respectively. We finally found a significant association between an IQR increase in sulfur dioxide and cardiovascular deaths in the case of men, under 18-year-olds and from 18-to 60-year-olds in the lag 9, 0, and 11, respectively (p-values < 0.05). Conclusions: It appears that air pollution is signifi cantly associated with cardiovascular deaths in Ahvaz City. Int J Occup Med Environ Health 2018;31(4)

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Dastoorpoor

Khanjani

Idani

et al. 2018

Int J Occup Med Environ Health

Self Cite

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“…A 10 μg/m 3 increase in PM 2.5 corresponds to a 0.68% increase in cardiovascular mortality [4]. Short-term exposure to PM 2.5 induces respiratory hospital admissions [5,6], increases total cerebrovascular disease mortality [7], and even aggravates already diagnosed Parkinson's disease [8].…”

Section: Introductionmentioning

confidence: 99%

Association between ambient PM2.5 and emergency department visits for psychiatric emergency diseases

Kim

Shin

Song

et al. 2019

The American Journal of Emergency Medicine

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a b s t r a c tBackground: Whether or not short-term exposure to particulate matter b2.5 μm in diameter (PM 2.5 ) increases the risk of psychiatric emergency diseases is unclear. Methods: The study was performed in a metropolis from January 2015 to December 2016. The exposure was PM 2.5 , and the confounders were weather (temperature and humidity) and other pollutants (PM 10 , SO 2 , CO, O 3 , and NO 2 ). The outcomes were emergency department (ED) visits with psychiatric disease codes (F00-F99 in ICD10 codes). General additive models were used for the statistical analysis to calculate the adjusted relative risks (ARRs) and 95% confidence intervals (95% CIs) for the daily number of ED visits with a lag of 1 to 3 days following a 10 μg/m 3 increase in PM 2.5 . Results: During the study period, a total of 67,561 ED visits for psychiatric diseases were identified and tested for association with PM 2.5 . Daily ED visits for all psychiatric diseases were not associated with PM 2.5 in the model that was not adjusted for other pollutants. The ARR (95% CI) in the model adjusted for SO 2 was 1.011 (1.002-1.021) by 10 μg/m 3 of PM 2.5 on Lag 1 for all psychiatric diseases (F00-F99). The ARR (95% CI) in the model adjusted for O 3 was 1.015 (1.003-1.029) by 10 μg/m 3 of PM 2.5 on Lag 1 for F40-F49 (Neurotic, stress-related and somatoform disorders). Conclusion: An increase in PM 2.5 showed a significant association with an increase in ED visits for all psychiatric diseases (F00-F99) and for neurotic, stress-related and somatoform disorders (F40-F49) on lag day 1.

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“…Previous studies also observed significant effects of O3 on total respiratory disease at some specific lags (124,238,310). For example, in one study conducted in Canada, the authors found respiratory admissions among children aged <3 years old were associated with elevated O3 levels at 2, 3, 4, and 5 days prior to admission with the strongest association observed at a lag of 4 days OR 1.22 (95% CI 1.15 -1.30) based on an increment increase in O3 level of 19 µg/m 3 (124).…”

Section: Discussionmentioning

confidence: 70%

Evaluating the effects of atmospheric environment on children’s health in Hanoi, Vietnam

Luong¹

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Hanoi, Vietnam, has recently been facing several environmental issues including serious air pollution and climate changes, which have been reported as factors affecting child health. The purpose of my research is to evaluate the effect of atmospheric condition on children's health in Hanoi by examining how short-term changes in daily concentration of ambient air pollutants and weather condition affects the hospital admissions of children younger than 5 years old. The independent variables of the study include daily mean concentration of air pollutants such as particulate matter, nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO), ozone (O3) and daily meteorological data such as temperature and relative humidity, collected from the national automatic air quality stations. The dependent variables are the daily hospital admissions in children aged less than 5 and were collected from three hospitals in Hanoi. My thesis includes eight chapters which are Introduction (Chapter 1), Methods (Chapter 3), and four studies presented respectively in chapters 2, 4, 5 and 6; a Discussion (Chapter 7) and References (Chapter 8). My first study is a systematic review and meta-analysis on the relationship between air pollution and risk for a specific group of respiratory diseases: wheeze-associated disorders among children in Southeast Asia area. I searched the relevant computerized databases (PubMed, EMBASE, Web of Science, Scopus, and Cochrane library) for indexed publications up to July 2018. Finally, eight studies were qualified for performing a randomeffect meta-analysis to compute the pooled effect sizes. The results show that each increase of 10 µg/m 3 in concentrations of PM2.5 or PM1 was associated with 1-2% increase in risk of wheeze-associated disorders. Positive associations were found for PM10, SO2, NO2, NOx but no association was found for CO and O3. My study confirmed the strong effect of fine particulate matters on respiratory health and I recommend an updated meta-analysis should be done when more studies are available. A manuscript based on the results from this study has been published in Reviews on Environmental Health in the early of 2019 (Chapter 2). My second study examined the relationship between particulate air pollution and hospital admissions for respiratory diseases by using the time-stratified case-crossover design. The results confirmed that the daily hospital admissions for respiratory diseases among children

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Associations of short-term exposure to air pollution with respiratory hospital admissions in Arak, Iran

Cited by 43 publications

References 52 publications

Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Association between ambient PM2.5 and emergency department visits for psychiatric emergency diseases

Evaluating the effects of atmospheric environment on children’s health in Hanoi, Vietnam

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