Associacao entre exposicao ao material particulado e internacoes por doencas respiratorias em criancas

Abstract

The aim of this study was to estimate the association between exposure to particulate matter less than 2.5 microns in diameter and hospitalization for respiratory disease. It was an ecological time series study with daily indicators of hospitalization for respiratory diseases in children up to 10 years old, living in Piracicaba, SP, Southeastern Brazil, between August 1, 2011 and July 31, 2012. A generalized additive Poisson regression model was used. The relative risks were RR = 1.008; 95%CI 1.001;1.016 for lag 1 and RR = 1.009; 95%CI 1.001;1.017 for lag 3. The increment of 10 μg/m3in particulate matter less than 2.5 microns in diameter implies increase in relative risk of between 7.9 and 8.6 percentage points. In conclusion, exposure to particulate matter less than 2.5 microns in diameter was associated with hospitalization for respiratory disease in children.

Air pollutants and hospital admission due to pneumonia in children: a time series analysis

“…Negrisoli et al 14 observed this association at Lag 4 in a study conducted in Sorocaba, SP, on hospitalizations due to pneumonia, and Nascimento et al 3 noted that the ef- fects of PM 10 on hospital admissions due to pneumonia in the city of São José dos Campos, SP, became relevant only three or four days after exposure. In a study by Cesar et al, 13 conducted in the municipality of Piracicaba, SP, the authors were able to observe that increments of 10 mg/m 3 in the level of inhalable fine particulate matter (PM 2.5 ) are associated with increases of 7.9 (Lag 1) and 8.6% (Lag 3) in hospitalizations due to respiratory diseases. Arbex et al 15 linked this increase to a 6% increase in demand for emergency service caused by pneumonia at a hospital in Araraquara, Brazil.…”

“…[8][9][10][11][12] However, there are few studies on the effects of air pollution outside of major urban centers, especially in areas where there is biomass burning such as sugarcane straw. [13][14][15] Thus, the objective of this study was to estimate the association between exposure to air pollution and hospital admissions for pneumonia in children living in Araraquara, a medium-sized municipality in the state of São Paulo, in the period from January 2010 to November 2012.…”

Material particulado fino estimado por modelo matemático e internações por pneumonia e asma em crianças

“…The burning of biomass, as shown by the results of Piracicaba (SP) and the Amazon region, has an important role in pollutant concentrations 710 , 11 …”

“…The risk factors most commonly associated with their occurrence are low birth weight, the presence of smokers at home, lack of breastfeeding and exposure to air pollutants 47 , 10 , 11 Specifically in cases of asthma, vehicular traffic, particularly heavy vehicles, seems to be important 3…”

“…However, studies using estimated concentrations of some air pollutants, among them PM 2.5 , provided by the mathematical model Chemical Coupled Aerosol and Tracer Transport Model to the Brazilian Developments on the Regional Atmospheric Modeling System (CCATT-BRAMS), have been used to evaluate the effects of air pollutant exposure 1718 The use of estimated data becomes an option, in cases of cities where there are no monitoring stations for some or any pollutants 1119 …”