Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil.
<h4>Background</h4>Several epidemiological studies have reported associations between ambient air pollution and mortality. However, relatively few studies have investigated this relationship in Brazil using individual-level data.<h4>Objectives</h4>To estimate the short-term a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0281499 |
| _version_ | 1797860165918130176 |
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| author | Taísa Rodrigues Cortes Ismael Henrique Silveira Beatriz Fátima Alves de Oliveira Michelle L Bell Washington Leite Junger |
| author_facet | Taísa Rodrigues Cortes Ismael Henrique Silveira Beatriz Fátima Alves de Oliveira Michelle L Bell Washington Leite Junger |
| author_sort | Taísa Rodrigues Cortes |
| collection | DOAJ |
| description | <h4>Background</h4>Several epidemiological studies have reported associations between ambient air pollution and mortality. However, relatively few studies have investigated this relationship in Brazil using individual-level data.<h4>Objectives</h4>To estimate the short-term association between exposure to particulate matter <10 μm (PM10) and ozone (O3), and cardiovascular and respiratory mortality in Rio de Janeiro, Brazil, between 2012 and 2017.<h4>Methods</h4>We used a time-stratified case-crossover study design with individual-level mortality data. Our sample included 76,798 deaths from cardiovascular diseases and 36,071 deaths from respiratory diseases. Individual exposure to air pollutants was estimated by the inverse distance weighting method. We used data from seven monitoring stations for PM10 (24-hour mean), eight stations for O3 (8-hour max), 13 stations for air temperature (24-hour mean), and 12 humidity stations (24-hour mean). We estimated the mortality effects of PM10 and O3 over a 3-day lag using conditional logistic regression models combined with distributed lag non-linear models. The models were adjusted for daily mean temperature and daily mean absolute humidity. Effect estimates were presented as odds ratios (OR) with their 95% confidence interval (CI) associated with a 10 μg/m3 increase in each pollutant exposure.<h4>Results</h4>No consistent associations were observed for both pollutant and mortality outcome. The cumulative OR of PM10 exposure was 1.01 (95% CI 0.99-1.02) for respiratory mortality and 1.00 (95% CI 0.99-1.01) for cardiovascular mortality. For O3 exposure, we also found no evidence of increased mortality for cardiovascular (OR 1.01, 95% CI 1.00-1.01) or respiratory diseases (OR 0.99, 95% CI 0.98-1.00). Our findings were similar across age and gender subgroups, and different model specifications.<h4>Conclusion</h4>We found no consistent associations between the PM10 and O3 concentrations observed in our study and cardio-respiratory mortality. Future studies need to explore more refined exposure assessment methods to improve health risk estimates and the planning and evaluation of public health and environmental policies. |
| first_indexed | 2024-04-09T21:41:23Z |
| format | Article |
| id | doaj.art-8bdbb469f31246d389b6da2589371ff1 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-09T21:41:23Z |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-8bdbb469f31246d389b6da2589371ff12023-03-26T05:31:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01182e028149910.1371/journal.pone.0281499Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil.Taísa Rodrigues CortesIsmael Henrique SilveiraBeatriz Fátima Alves de OliveiraMichelle L BellWashington Leite Junger<h4>Background</h4>Several epidemiological studies have reported associations between ambient air pollution and mortality. However, relatively few studies have investigated this relationship in Brazil using individual-level data.<h4>Objectives</h4>To estimate the short-term association between exposure to particulate matter <10 μm (PM10) and ozone (O3), and cardiovascular and respiratory mortality in Rio de Janeiro, Brazil, between 2012 and 2017.<h4>Methods</h4>We used a time-stratified case-crossover study design with individual-level mortality data. Our sample included 76,798 deaths from cardiovascular diseases and 36,071 deaths from respiratory diseases. Individual exposure to air pollutants was estimated by the inverse distance weighting method. We used data from seven monitoring stations for PM10 (24-hour mean), eight stations for O3 (8-hour max), 13 stations for air temperature (24-hour mean), and 12 humidity stations (24-hour mean). We estimated the mortality effects of PM10 and O3 over a 3-day lag using conditional logistic regression models combined with distributed lag non-linear models. The models were adjusted for daily mean temperature and daily mean absolute humidity. Effect estimates were presented as odds ratios (OR) with their 95% confidence interval (CI) associated with a 10 μg/m3 increase in each pollutant exposure.<h4>Results</h4>No consistent associations were observed for both pollutant and mortality outcome. The cumulative OR of PM10 exposure was 1.01 (95% CI 0.99-1.02) for respiratory mortality and 1.00 (95% CI 0.99-1.01) for cardiovascular mortality. For O3 exposure, we also found no evidence of increased mortality for cardiovascular (OR 1.01, 95% CI 1.00-1.01) or respiratory diseases (OR 0.99, 95% CI 0.98-1.00). Our findings were similar across age and gender subgroups, and different model specifications.<h4>Conclusion</h4>We found no consistent associations between the PM10 and O3 concentrations observed in our study and cardio-respiratory mortality. Future studies need to explore more refined exposure assessment methods to improve health risk estimates and the planning and evaluation of public health and environmental policies.https://doi.org/10.1371/journal.pone.0281499 |
| spellingShingle | Taísa Rodrigues Cortes Ismael Henrique Silveira Beatriz Fátima Alves de Oliveira Michelle L Bell Washington Leite Junger Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. PLoS ONE |
| title | Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. |
| title_full | Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. |
| title_fullStr | Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. |
| title_full_unstemmed | Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. |
| title_short | Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. |
| title_sort | short term association between ambient air pollution and cardio respiratory mortality in rio de janeiro brazil |
| url | https://doi.org/10.1371/journal.pone.0281499 |
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