Long-term changes in adult asthma prevalence.

  title={Long-term changes in adult asthma prevalence.},
  author={Jan C Brogger and Per S. Bakke and Geir Egil Eide and Bj\orn Johansen and Anna Rask Andersen and Amund Gulsvik},
  journal={The European respiratory journal},
  volume={21 3},
There has been an increase in asthma prevalence among children. Little evidence is available regarding long-term changes in asthma prevalence in adults. Two cross-sectional studies were performed among adults aged 15-70 yrs in Oslo, Norway, in 1972 and again in 1998-1999 (n=39,998). A postal self-completed questionnaire was used. Exactly the same questions and survey methods were used in both studies. In 1998-1999, additional telephone follow-up was included for postal nonresponders. The crude… CONTINUE READING