Fig 1.
Flow chart of the GEIRD study in the Pavia, Sassari, Turin and Verona centres, and selection of the cases of asthma.
Table 1.
Coding and definition of the candidate variables.
Table 2.
Main characteristics of the 520 cases of asthma identified in the GEIRD study.
Fig 2.
Distribution of the Symptom frequency and anti-asthmatic Treatment intensity Score (STS).
Data from the GEIRD study.
Table 3.
Median of the Symptom frequency and anti-asthmatic Treatment intensity Score (STS) according to the GINA classification of asthma severity.
Data from the GEIRD study.
Table 4.
Association between the Symptom frequency and anti-asthmatic Treatment intensity Score (STS) at baseline (1991–1993) and long-term outcomes at the end of follow-up (1999–2001).
Data from the ECRHS study.
Fig 3.
Relationship between the Symptom frequency and anti-asthmatic Treatment intensity Score (STS) computed by using the weights from the GEIRD data (horizontal axis) and STS computed by using the weights from the ECRHS II data (vertical axis).