Los niños que vivían en las áreas mas contaminadas presentaron cifras significativamente mayores de: a) antecedentes de sibilancias 25.6 % contra 14.2%) b) sibilancias en los últimos 12 meses (18.8% contra 9%) y c) hiperreactividad bronquial (12.2% contra 7.5%).
Los autores concluyen afirmando que la contaminación del aire derivada de los procesos industriales puede tener un rol importante en el desarrollo de asma en los niños expuestos.
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