In primary care settings, where most asthma is managed, the diagnosis of asthma is often based on symptoms (wheezing, coughing, shortness of breath and chest tightness) despite the fact that these symptoms are often nonspecific to asthma. Revicki et al. recommended the Asthma Symptom Utility Index as a core measure for asthma therapeutic studies.
As asthma symptoms vary over time, retrospective surveys are limited by patient recall. In addition, it has been noted that self-reports of symptoms may underestimate severity compared with measures of airway obstruction from a medical exam. Thus, some have argued that clinical measures more accurately assess the level of asthma control achieved. Patients can also use daily symptom diaries, as summarized in the following section.
Expert Rev Pharmacoeconomics Outcomes Res. 2011;11(4):447-453. © 2011 Expert Reviews Ltd.
Cite this: Asthma Outcome Measures - Medscape - Aug 01, 2011.