Coarse particles and hospital admissions due to respiratory diseases in children. An ecological time series study
São Paulo med. j
;
136(3): 245-250, May-June 2018. tab, graf
Article
in English
| LILACS
| ID: biblio-962716
ABSTRACT
ABSTRACT BACKGROUND:
Exposure to particulate matter (PM) is associated with hospitalizations due to respiratory diseases among children. DESIGN ANDSETTING:
An ecological time series study was carried out to identify the role of coarse fractions of particulate matter (PM10-2.5) in hospitalizations among children up to 10 years of age, in Piracicaba (SP) in the year 2015.METHODS:
A generalized additive model of Poisson regression was used to estimate the risk of hospitalization due to acute laryngitis and tracheitis, pneumonia, bronchitis, bronchiolitis and asthma. Lags of 0 to 7 days were considered, and the model was adjusted for the temperature and relative humidity of the air and controlled for short and long-term exposure. Proportional attributable ratios, population-attributable fractions and hospital costs were calculated with increasing concentrations of these pollutants.RESULTS:
638 hospitalizations were evaluated during this period, with a mean of 1.75 cases per day (standard deviation, SD = 1.86). The daily averages were 22.45 µg/m3 (SD = 13.25) for the coarse fraction (PM10-2.5) and 13.32 µg/m3 (SD = 6.38) for the fine fraction. Significant risks of PM10-2.5 exposure were only observed at lag 0, with relative risk (RR) = 1.012, and at lag 6, with RR = 1.011. An increase of 5 µg/m3 in the coarse fraction concentration implied an increase in the relative risk of hospitalizations of up to 4.8%, with an excess of 72 hospitalizations and excess expenditure of US$ 17,000 per year.CONCLUSIONS:
This study showed the impact of coarse-fraction exposure on hospital admissions among children due to respiratory diseases.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Patient Admission
/
Respiratory Tract Diseases
/
Environmental Exposure
/
Particulate Matter
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
Journal subject:
Cirurgia Geral
/
Cincia
/
Ginecologia
/
Medicine
/
Medicina Interna
/
Obstetr¡cia
/
Pediatria
/
Sa£de Mental
/
Sa£de P£blica
Year:
2018
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Federal de Educação Ciência e Tecnologia de São Paulo/BR
/
Universidade de Taubaté/BR
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