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Registros recuperados: 3
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Air pollution and neonatal deaths in São Paulo, Brazil BJMBR
Lin,C.A.; Pereira,L.A.A.; Nishioka,D.C.; Conceição,G.M.S.; Braga,A.L.F.; Saldiva,P.H.N..
Air pollution has been associated with health effects on different age groups. The present study was designed to assess the impact of daily changes in air pollutants (NO2, SO2, CO, O3, and particle matter (PM10)) on total number of daily neonatal deaths (those that occur between the first and the 28th days of life) in São Paulo, from January 1998 to December 2000, since adverse outcomes such as neonatal deaths associated with air pollution in Brazil have not been evaluated before. Generalized additive Poisson regression models were used and nonparametric smooth functions (loess) were adopted to control long-term trend, temperature, humidity, and short-term trends. A linear term was used for holidays. The association between air pollutants and neonatal...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neonatal mortality; Infant mortality; Air pollution.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000500019
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Effect of air pollution on pediatric respiratory emergency room visits and hospital admissions BJMBR
Farhat,S.C.L.; Paulo,R.L.P.; Shimoda,T.M.; Conceição,G.M.S.; Lin,C.A.; Braga,A.L.F.; Warth,M.P.N.; Saldiva,P.H.N..
In order to assess the effect of air pollution on pediatric respiratory morbidity, we carried out a time series study using daily levels of PM10, SO2, NO2, ozone, and CO and daily numbers of pediatric respiratory emergency room visits and hospital admissions at the Children's Institute of the University of São Paulo Medical School, from August 1996 to August 1997. In this period there were 43,635 hospital emergency room visits, 4534 of which were due to lower respiratory tract disease. The total number of hospital admissions was 6785, 1021 of which were due to lower respiratory tract infectious and/or obstructive diseases. The three health end-points under investigation were the daily number of emergency room visits due to lower respiratory tract diseases,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Time-series; Poisson; Air pollution; Children; Respiratory morbidity.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000200011
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Pulmonary emphysema induced by passive smoking: an experimental study in rats BJMBR
Cendon,S.P.; Battlehner,C.; Lorenzi-Filho,G.; Dohlnikoff,M.; Pereira,P.M.; Conceição,G.M.S.; Beppu,O.S.; Saldiva,P.H.N..
We describe a short time model for inducing experimental emphysema in rats by chronic tobacco smoke inhalation. Three groups of male Wistar rats (6 months old) were studied: controls (N = 8), rats intoxicated for 45 days (s-45, N = 7) or for 90 days (s-90, N = 8). The exposed animals were intoxicated 3 times a day (10 cigarettes per exposure period), 5 days a week. Pulmonary damage was assessed by means of functional tests and quantitative pathological examination of the airways and lung parenchyma. The s-45 and s-90 animals were similar in terms of functional residual capacity (FRC) corrected for body weight (FRC/kg) but both groups of smoking rats exhibited significantly higher FRC/kg values than the controls (s-45 = 6.33; s-90 = 6.46; controls = 3.78;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Passive smoking; Emphysema; Rats; Pulmonary function; Morphological analysis; Quantification.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001000017
Registros recuperados: 3
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