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TitleAsthma incidence and accuracy of diagnosis in the Portuguese sentinel practice network
Author(s)Correia de Sousa, Jaime
Silva, Manuel Luciano
Lobo, Filipa Almada
Yaphe, John
Diagnostic accuracy
Family practice
General practice
Issue date20-Apr-2010
PublisherNature Publishing Group
JournalPrimary Care Respiratory Journal
Citationde Sousa, J. C., Silva, M. L., Lobo, F. A., & Yaphe, J. (2010). Asthma incidence and accuracy of diagnosis in the Portuguese sentinel practice network. Primary Care Respiratory Journal, 19(4), 352
Abstract(s)Aims: Asthma is frequently under-diagnosed with a wide variation in incidence rates. We aimed to assess how physicians in a Portuguese sentinel practice network perform using standardised diagnostic criteria. Method: Patients consulting one of the 43 network physicians with complaints suggestive of asthma were enrolled in the study over a four-year period. Symptom frequency and diagnoses of asthma were tabulated. Diagnostic accuracy was computed by dividing the rate of asthma diagnosis by the true rate using established diagnostic criteria. Results: Over four years, 43 physicians followed 32,103 patients (128,412 patient-years) and diagnosed asthma in 310. The diagnosis was,confirmed in 260 cases, giving a true incidence rate of 2.02/1000/year (95% confidence interval 1.8 to 2.2) and an accuracy of diagnosis of 84%. Conclusions: Asthma incidence approaches published rates if accepted criteria are used. Educational efforts to ensure more accurate diagnosis may improve outcomes for asthma patients.
Publisher version
AccessOpen access
Appears in Collections:ICVS - Artigos em revistas internacionais / Papers in international journals

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