Evaluation of peak expiratory flow in adolescents and its association with inhalable particulate in a Brazilian medium-sized city

Missagia, Suelem; Amaral, Camila Alves Silva do; Jesus, Alessandra Santos de; Arbex, Marcos Abdo; Santos, Ubiratan de Paula; André, Carmem Diva Saldiva de; André, Paulo Afonso de; Saldiva, Paulo; Martins, Lourdes Conceição; Braga, Alfésio Luís Ferreira; Pereira, Luiz Alberto Amador

doi:10.1590/1980-549720180009

Cited by 7 publications

(7 citation statements)

References 21 publications

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“…Specifically, a 1 µg m -3 increase in daily ambient PM 10 max (lag 6) was associated with a decrease in morning PEFR of 0.01 L min -1 . These results support previous findings (Hoek et al, 1998;Qian et al, 2009;Wiwatanadate and Liwsrisakun, 2011;Missagia et al, 2018). Missagia et al (2018) studied 117 children and adolescents in a Brazilian public school and found that an increase of 14 µg m -3 in PM 10 associated with decreased morning PEFR by -1.04% (95% CI: -1.32, -0.77).…”

Section: Discussionsupporting

confidence: 91%

“…These results support previous findings (Hoek et al, 1998;Qian et al, 2009;Wiwatanadate and Liwsrisakun, 2011;Missagia et al, 2018). Missagia et al (2018) studied 117 children and adolescents in a Brazilian public school and found that an increase of 14 µg m -3 in PM 10 associated with decreased morning PEFR by -1.04% (95% CI: -1.32, -0.77). Hoek et al (1998) analyzed and averaged data from five panel studies and reported an increase of 10 µg m -3 in PM 10 related to a decrease of 0.07% in mean PEFR.…”

Section: Discussionsupporting

confidence: 91%

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Air Pollution Levels Related to Peak Expiratory Flow Rates among Adult Asthmatics in Lampang, Thailand

Chujit

Wiwatanadate

Deesomchok

et al. 2020

Aerosol Air Qual. Res.

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Asthmatics may suffer harmful health effects from air pollution. This year-long study, which was conducted from November 2015 till October 2016 and resulted in 12,045 data points from 33 participants, assessed the relationships (with a 95% confidence interval [CI]) between measured air pollutant (CO, NO 2 , O 3 , SO 2 , PM 2.5 and PM 10) concentrations and peak expiratory flow rates (PEFRs) among adults with asthma in the district of Mae Moh in Lampang, Thailand. A positive correlation was found between the mean daily concentration of NO 2 from 4 days prior ("lag 4") and the PEFR upon waking ("morning PEFR"), with an increase of 1 ppb in the former being associated with an increase of 1.34 L min-1 (95% CI: 0.25, 2.44) in the latter. Also, the interaction between NO 2 (lag 4) and PM 10 (lag 6) was multiplicatively associated with a decrease of-0.015 L min-1 in the morning PEFR, which was also negatively associated with the maximum daily concentration ("max") of NO 2 (lag 2) and that of PM 10 (lag 6), with coefficients of-0.07 and-0.013, respectively. Furthermore, when including PM 2.5 max in the generalized estimating equation model, only NO 2 max (lag 2) and CO max (lag 6) were negatively associated with the morning PEFR, displaying coefficients of-0.08 and-1.71, respectively. O 3 max (lag 3) and PM 2.5 max exhibited positive relationships with the PEFR before sleeping ("evening PEFR"), with coefficients of 0.078 and 0.029, respectively. Additionally, the average daily PEFR was positively associated with the average daily concentration of NO 2 (lag 4), with a coefficient of 0.15, but negatively associated with that of SO 2 , with a coefficient of-0.47. We also observed a negative relationship between the average daily PEFR and NO 2 max (lag 2), with a coefficient of-0.05, but a positive one between the former and O 3 max (lag 3), with a coefficient of 0.06. Our results indicate that the delayed-and, in some cases, negative-effects of these pollutants on PEFRs must be considered in health forecasting and that preventative measures should be implemented to control certain emissions at the source.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Air Pollution Levels Related to Peak Expiratory Flow Rates among Adult Asthmatics in Lampang, Thailand

Chujit

Wiwatanadate

Deesomchok

et al. 2020

Aerosol Air Qual. Res.

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“…Real-world peak flow measurements and variability have been shown to worsen with higher levels of air pollution in both children and adults, in many but not all studies. [61][62][63] This effect can occur rapidly. In their landmark study, McCreanor et al 53 reported a fall in lung function (FEV 1 ) in adults with asthma while walking for 2 h along Oxford Street, London (a road with high levels of traffic-associated air pollution), compared with a walk in nearby traffic-free Hyde Park.…”

Section: Capacity To Cause Acute Small Airway Airflow Obstructionmentioning

confidence: 99%

Air Pollution and Asthma

Pfeffer

Mudway

Grigg

2021

Chest

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“…Ainda que de forma subjetiva, a percepção de poluição esteve relacionada como fator de risco para sibilância recorrente nos lactentes. Estes resultados são concordantes com os estudos sobre poluição e sibilância realizados na Alemanha, Holanda e Suécia 18 e também com a clara associação negativa entre material particulado (PM10) e reduzida função pulmonar em crianças no Brasil 19 . Políticas públicas voltadas para o controle de emissão de gases poluentes e material particulado, em Belém, podem melhorar a qualidade de vida desses lactentes, diminuindo custos com o setor saúde.…”

Section: /9unclassified

Sibilância recorrente em lactentes no primeiro ano de vida em Belém (Pará, Brasil)

Prestes¹,

Mallol²,

Solé³

2022

PRMJ

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PediatriaCopyright Prestes et al. Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado.resumo Objetivo: determinar a prevalência e os fatores de risco para sibilância recorrente em lactentes no primeiro ano de vida em Belém, Pará, Brasil. Método: Estudo transversal que utilizou o questionário escrito do Estudio Internacional de Sibilancias en Lactentes (EISL) para pais de lactentes de 12 a 15 meses, nas Unidades de Saúde de Belém, por ocasião de vacinação, entremaioeagosto de 2006. Utilizou-se o Teste t de Student na comparação de médias numéricas e estimação da razão de chances (RC), com intervalo de confiança 95%, e ajuste de modelo de regressão logística para avaliar fatores de risco ou proteção com nível de significância de 5%. Resultados: 3.024 crianças participaram do estudo. A prevalência de sibilância recorrente nesses lactentes foi de 21,9%. Os fatores de risco para sibilância recorrente no primeiro ano de vida foram: gênero masculino, infecção de vias aéreas, infecção de vias aéreas antes de cinco meses de idade, raça negra, exposição à poluição atmosférica, história familiar de asma e rinite, dermatite atópica pessoal. Ter o calendário vacinal atualizado e ter seis meses de idade ou mais na primeira infecção foram fatores de proteção. Conclusão: a prevalência de sibilância recorrente é elevada em Belém e seus fatores de risco estão ligados a genética e fatores ambientais. Prevenir infecção de vias aéreas em lactente jovem e controlara poluição ambiental pode minimizar a doença sibilante. Descritores: sons respiratórios; recorrente; lactente; fator de risco; fator de proteção; asma.Summary Purpose: To identify the prevalence and risk factors for recurrent wheezing in infants fromBelém, Pará, Brazil. Methods:A cross-sectional study that used the written questionnaire EstudioInternational de Sibilancias en Lactentes (EISL) for parents of infants 12 to15 month-old, in the Health Units of Belém at the time of vaccination between May and August 2006. The Student t test for continuous variables and Chi-square test for categorical variables, estimation of Odds ratio (OR) with 95% confidence interval and adjustmentof logistic regression model to evaluate risk factors with a significance level of 5% were done. Results: 3,024 children participated in the study. The prevalence of recurrent wheezing in these infants was 21.9%. Risk factors associated with recurrent wheezing were male sex, respiratory infections, especially under five months-old, rhinitis and asthma in the family, atopic dermatitis, living in a polluted area, and blackrace. Immunization schedule completeand respiratory infections after six months-old were protective factor. Conclusion: The prevalence of recurrent wheezing is higher in Belém and some of its known risk factors may help to promote preventive measures applicable to wheezing. Contribuição dos autoresEXP foi aut...

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Evaluation of peak expiratory flow in adolescents and its association with inhalable particulate in a Brazilian medium-sized city

Abstract: Adverse effects were found and it suggests an association between increase in PM10 and reduced lung function.

Cited by 7 publications

References 21 publications

Air Pollution Levels Related to Peak Expiratory Flow Rates among Adult Asthmatics in Lampang, Thailand

Air Pollution Levels Related to Peak Expiratory Flow Rates among Adult Asthmatics in Lampang, Thailand

Air Pollution and Asthma

Sibilância recorrente em lactentes no primeiro ano de vida em Belém (Pará, Brasil)

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