Environmental and occupational respiratory diseases – 1044. Prevalence of recurrent wheezing in infants in a poor urban city in South Brazil

Methods This is a cross-sectional study, part of the EISL (International Study of Wheezing in Infant). The parents or legal guardians of the infant aged 1-15 months attending health centers for immunization were interviewed and administered the EISL questionnaire, a standardized and validated instrument consisting of questions on demographic characteristics, wheezing, respiratory infections and risk factors during the period between January 2008 and July 2010.