Asthma in an Urban Population in Portugal: A prevalence study

  title={Asthma in an Urban Population in Portugal: A prevalence study},
  author={Jaime Correia de Sousa and Maria Esp{\'i}rito Santo and T{\^a}nia Colaço and Filipa Almada-Lobo and John Yaphe},
  booktitle={BMC public health},
BACKGROUND The prevalence and incidence of asthma are believed to be increasing but research on the true incidence, prevalence and mortality from asthma has met methodological obstacles since it has been difficult to define and diagnose asthma in epidemiological terms. New and widely accepted diagnostic criteria for asthma present opportunities for progress in this field. Studies conducted in Portugal have estimated the disease prevalence between 3% and 15%. Available epidemiological data… CONTINUE READING

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