Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/35674 http://dx.doi.org/10.1136/bmjopen-2013-002552 |
Resumo: | Objectives in order to assess if ambient air pollution in urban areas could be related to alterations in male/female ratio this study objectives to evaluate changes in ambient particulate matter (PM10) concentrations after implementation of pollution control programmes in São Paulo city and the secondary sex ratio (SRR).Design and methods A time series study was conducted. São Paulo's districts were stratified according to the PM10 concentrations levels and were used as a marker of overall air pollution. the male ratio was chosen to represent the secondary sex ratio (SSR=total male birth/total births). the SSR data from each area was analysed according to the time variation and PM10 concentration areas using descriptive statistics. the strength association between annual average of PM10 concentration and SSR was performed through exponential regression, and it was adopted as a statistical significance level of p<0.05.Results the exponential regression showed a negative and significant association between PM10 and SSR. SSR varied from 51.4% to 50.7% in São Paulo in the analysed period (2000-2007). Considering the PM10 average concentration in São Paulo city of 44.72g/m(3) in the study period, the SSR decline reached almost 4.37%, equivalent to 30934 less male births.Conclusions Ambient levels of PM10 are negatively associated with changes in the SSR. Therefore, we can speculate that higher levels of particulate pollution could be related to increased rates of female births. |
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El Khouri Miraglia, Simone Georges [UNIFESP]Veras, Mariana MateraAmato-Lourenco, Luis FernandoRodrigues-Silva, FernandoNascimento Saldiva, Paulo HilarioUniversidade Federal de São Paulo (UNIFESP)Universidade de São Paulo (USP)2016-01-24T14:30:51Z2016-01-24T14:30:51Z2013-01-01Bmj Open. London: Bmj Publishing Group, v. 3, n. 7, 6 p., 2013.2044-6055http://repositorio.unifesp.br/handle/11600/35674http://dx.doi.org/10.1136/bmjopen-2013-002552WOS000329805500031.pdf10.1136/bmjopen-2013-002552WOS:000329805500031Objectives in order to assess if ambient air pollution in urban areas could be related to alterations in male/female ratio this study objectives to evaluate changes in ambient particulate matter (PM10) concentrations after implementation of pollution control programmes in São Paulo city and the secondary sex ratio (SRR).Design and methods A time series study was conducted. São Paulo's districts were stratified according to the PM10 concentrations levels and were used as a marker of overall air pollution. the male ratio was chosen to represent the secondary sex ratio (SSR=total male birth/total births). the SSR data from each area was analysed according to the time variation and PM10 concentration areas using descriptive statistics. the strength association between annual average of PM10 concentration and SSR was performed through exponential regression, and it was adopted as a statistical significance level of p<0.05.Results the exponential regression showed a negative and significant association between PM10 and SSR. SSR varied from 51.4% to 50.7% in São Paulo in the analysed period (2000-2007). Considering the PM10 average concentration in São Paulo city of 44.72g/m(3) in the study period, the SSR decline reached almost 4.37%, equivalent to 30934 less male births.Conclusions Ambient levels of PM10 are negatively associated with changes in the SSR. Therefore, we can speculate that higher levels of particulate pollution could be related to increased rates of female births.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Federal de São Paulo UNIFESP, ICAQF, Dept Ciencias Exatas & Terra, São Paulo, BrazilUniv São Paulo, Sch Med, Dept Pathol, Lab Expt Air Pollut LIM05, São Paulo, BrazilUniversidade Federal de São Paulo UNIFESP, ICAQF, Dept Ciencias Exatas & Terra, São Paulo, BrazilCNPq: 573813/2008-5: FAPESP - 2008/57717-6Web of Science6engBmj Publishing GroupBmj Openair pollutionsex ratioreproductive healthenvironmental healthSA o pound PauloFollow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series studyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000329805500031.pdfapplication/pdf335927${dspace.ui.url}/bitstream/11600/35674/1/WOS000329805500031.pdf7533648a5069be88e68e83428237eb46MD51open accessTEXTWOS000329805500031.pdf.txtWOS000329805500031.pdf.txtExtracted texttext/plain27238${dspace.ui.url}/bitstream/11600/35674/9/WOS000329805500031.pdf.txt3e59b39889e17490982ecdb13e857791MD59open accessTHUMBNAILWOS000329805500031.pdf.jpgWOS000329805500031.pdf.jpgIM Thumbnailimage/jpeg8593${dspace.ui.url}/bitstream/11600/35674/11/WOS000329805500031.pdf.jpg009489292a21ea97da15bbb91102f6a6MD511open access11600/356742023-06-05 19:32:48.152open accessoai:repositorio.unifesp.br:11600/35674Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:32:48Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
title |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
spellingShingle |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study El Khouri Miraglia, Simone Georges [UNIFESP] air pollution sex ratio reproductive health environmental health SA o pound Paulo |
title_short |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
title_full |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
title_fullStr |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
title_full_unstemmed |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
title_sort |
Follow-up of the air pollution and the human male-to-female ratio analysis in São Paulo, Brazil: a times series study |
author |
El Khouri Miraglia, Simone Georges [UNIFESP] |
author_facet |
El Khouri Miraglia, Simone Georges [UNIFESP] Veras, Mariana Matera Amato-Lourenco, Luis Fernando Rodrigues-Silva, Fernando Nascimento Saldiva, Paulo Hilario |
author_role |
author |
author2 |
Veras, Mariana Matera Amato-Lourenco, Luis Fernando Rodrigues-Silva, Fernando Nascimento Saldiva, Paulo Hilario |
author2_role |
author author author author |
dc.contributor.institution.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
El Khouri Miraglia, Simone Georges [UNIFESP] Veras, Mariana Matera Amato-Lourenco, Luis Fernando Rodrigues-Silva, Fernando Nascimento Saldiva, Paulo Hilario |
dc.subject.eng.fl_str_mv |
air pollution sex ratio reproductive health environmental health SA o pound Paulo |
topic |
air pollution sex ratio reproductive health environmental health SA o pound Paulo |
description |
Objectives in order to assess if ambient air pollution in urban areas could be related to alterations in male/female ratio this study objectives to evaluate changes in ambient particulate matter (PM10) concentrations after implementation of pollution control programmes in São Paulo city and the secondary sex ratio (SRR).Design and methods A time series study was conducted. São Paulo's districts were stratified according to the PM10 concentrations levels and were used as a marker of overall air pollution. the male ratio was chosen to represent the secondary sex ratio (SSR=total male birth/total births). the SSR data from each area was analysed according to the time variation and PM10 concentration areas using descriptive statistics. the strength association between annual average of PM10 concentration and SSR was performed through exponential regression, and it was adopted as a statistical significance level of p<0.05.Results the exponential regression showed a negative and significant association between PM10 and SSR. SSR varied from 51.4% to 50.7% in São Paulo in the analysed period (2000-2007). Considering the PM10 average concentration in São Paulo city of 44.72g/m(3) in the study period, the SSR decline reached almost 4.37%, equivalent to 30934 less male births.Conclusions Ambient levels of PM10 are negatively associated with changes in the SSR. Therefore, we can speculate that higher levels of particulate pollution could be related to increased rates of female births. |
publishDate |
2013 |
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2013-01-01 |
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2016-01-24T14:30:51Z |
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2016-01-24T14:30:51Z |
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Bmj Open. London: Bmj Publishing Group, v. 3, n. 7, 6 p., 2013. |
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http://repositorio.unifesp.br/handle/11600/35674 http://dx.doi.org/10.1136/bmjopen-2013-002552 |
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2044-6055 |
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WOS000329805500031.pdf |
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10.1136/bmjopen-2013-002552 |
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Bmj Open. London: Bmj Publishing Group, v. 3, n. 7, 6 p., 2013. 2044-6055 WOS000329805500031.pdf 10.1136/bmjopen-2013-002552 WOS:000329805500031 |
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