The course of asthma in young adults: a population-based nine-year follow-up on asthma remission and control.

Background: Only few longitudinal studies on the course of asthma among adults have been carried out.

Objective: The aim of the present prospective study, carried out between 2000 and 2009 in Italy, is to assess asthma remission and control in adults with asthma, as well as their determinants.

Methods: All the subjects with current asthma (21-47 years) identified in 2000 in the Italian Study on Asthma in Young Adults in 6 Italian centres were followed up.