From: Assessment of work-related asthma prevalence, control and severity: protocol of a field study
Part of the study | Duration of PEF measurements period | Used indexes | Interpretation |
---|---|---|---|
Epidemiological | 2 weeks | 20% daily variation of PEF | Active asthma |
Clinical | 4–6 weeks | Oasys score | >2.5 : in favor of OA 1.5–2.5 in favor of WEA <2.4: in disfavor of WEA |