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Influence of air pollutants on pneumonia hospitalizations among children in a town in the Brazilian Legal Amazon region: a time series study
Santana, Danila Pequeno; Santos, Viviane Martins; Silva, Ageo Mário Cândido da; Shimoya-Bittencourt, Walkiria.
  • Santana, Danila Pequeno; Universidade de Cuiabá. Postgraduate Program on Environment and Health. Cuiabá. BR
  • Santos, Viviane Martins; Universidade Federal de Mato Grosso. Hospital Universitário Júlio Müller. Cuiabá. BR
  • Silva, Ageo Mário Cândido da; Universidade de Cuiabá. Postgraduate Program on Environment and Health. Cuiabá. BR
  • Shimoya-Bittencourt, Walkiria; Universidade de Cuiabá. Postgraduate Program on Environment and Health. Cuiabá. BR
São Paulo med. j ; 138(2): 126-132, Mar.-Apr. 2020. tab, graf
Article in English | LILACS, SES-SP | ID: biblio-1139673
ABSTRACT
ABSTRACT

BACKGROUND:

Exposure to particulate material produced as a result of increased agricultural activity may increase the number of pneumonia hospitalizations among children. We hope to contribute to the knowledge base through highlighting the environmental mechanisms involved in this outcome and optimizing pollutant control policies.

OBJECTIVES:

To investigate the association between pneumonia hospitalizations among children and presence of environmental pollutants in a town in the Brazilian Legal Amazon region. DESIGN AND

SETTING:

Time series study conducted in the town of Tangará da Serra, Mato Grosso (MT), Brazil.

METHODS:

A total of 158 children aged 0 to 10 years participated in the study. Data on environmental variables and pollutants were extracted daily through the Coupled Chemistry-Aerosol-Tracer Transport model coupled to Brazilian Regional Atmospheric Modeling System (CCATT-BRAMS). Meteorological data were provided by the Weather Forecasting and Climate Studies Center (CPTEC).

RESULTS:

There was greater frequency of pneumonia hospitalizations in the months of transition between the rainy and dry seasons, with a prevalence ratio 2.4 times higher than in other periods. For environmental pollutants, there was a significant positive correlation between particulate matter (PM2.5) and pneumonia hospitalizations (correlation 0.11), with more admissions on the days when PM2.5 levels were highest (averages of 6.6 µg/m3 when there were no admissions and 13.11 µg/m3 on days with two or more admissions).

CONCLUSIONS:

The higher the PM2.5 level was, the greater the frequency of hospitalizations also was. Children living in peripheral areas had higher prevalence of pneumonia hospitalizations in the dry period than those who were living in the town center.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Pneumonia / Air Pollutants / Air Pollution Type of study: Etiology study / Prognostic study / Risk factors Limits: Child / Child, preschool / Humans / Infant / Infant, Newborn Country/Region as subject: South America / Brazil Language: English Journal: São Paulo med. j Year: 2020 Type: Article Institution/Affiliation country: Universidade Federal de Mato Grosso/BR / Universidade de Cuiabá/BR

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Full text: Available Index: LILACS (Americas) Main subject: Pneumonia / Air Pollutants / Air Pollution Type of study: Etiology study / Prognostic study / Risk factors Limits: Child / Child, preschool / Humans / Infant / Infant, Newborn Country/Region as subject: South America / Brazil Language: English Journal: São Paulo med. j Year: 2020 Type: Article Institution/Affiliation country: Universidade Federal de Mato Grosso/BR / Universidade de Cuiabá/BR