Classifying asthma severity: prospective symptom diary or retrospective symptom recall?

Journal Name: 
J Adolesc Health
Authors: 
Reznik,M.
Sharif,I.
Ozuah,P.O.
Abstract: 
We used an observational within-subject control study at an inner-city school to compare asthma severity classification obtained by retrospective symptom recall with that obtained by a prospective symptom diary. The prospective symptom diary identified a higher proportion of persistent asthmatics than the retrospective symptom recall.
2005
Volume: 
36
Pages: 
537-538
Keywords: 
Asthma, classification, NYC RING