[Incidence of respiratory symptoms and the association with air pollution in preschoolers: a multilevel analysis].
The aim of this study was to evaluate the association between air pollution and respiratory symptoms in preschoolers from Bucaramanga, Colombia. A cohort study was conducted by reporting daily symptoms in preschoolers living in two zones of the city with different PM10 air pollution levels. Individual and neighborhood variables were included in a multilevel analysis. In 707 preschoolers followed for a year, sneezing and cough with mucus were the most frequent symptoms, with incidence rates of 277.2 and 203.3 events per 100 child months at risk. In the high pollution zone, an increase of 10 microg/m3 in PM10 concentration increased the reporting of daily symptoms by 1.3. Multilevel analysis showed no statistical association between PM10 and respiratory symptoms, but asthma history, heavy traffic in front of the residence, presence of domestic pets, and dirt floors were associated with respiratory symptoms.
Villamizar
Laura Andrea Rodríguez
LA
Observatorio de Salud Pública de Santander, Bucaramanga, Colombia. laurarovi78@gmail.com
López
Astrid Berena Herrera
AB
Ortiz
Henry Castro
HC
Velázquez
Jurg Niederbacher
JN
Cala
Lina María Vera
LM
D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D001249:Asthma / Q000453:epidemiology* / Q000209:etiology; D002675:Child, Preschool; D015331:Cohort Studies; D003105:Colombia / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D055361:Multilevel Analysis
D000393:Air Pollutants