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Evid Based Nurs 8:121 doi:10.1136/ebn.8.4.121
  • Assessment (screening or diagnosis)

Review: fever and cough are the most accurate single tests for diagnosing influenza


 
 Q In patients with influenza-like illnesses, what is the accuracy of clinical signs and symptoms for diagnosing influenza?

METHODS

GraphicData sources:

Medline (1966 to September 2004) and bibliographies of relevant articles.

GraphicStudy selection and assessment:

published studies on the assessment of clinical signs and symptoms as predictors of influenza; prospective cohort, randomised controlled trial, or meta-analysis study designs; ⩾1 outcome being influenza type A or B infection; and independent blinded comparison of signs or symptoms with a criterion standard in consecutive patients who might have influenza. Quality assessment criteria included study design and validity of criterion standard.

GraphicOutcomes:

likelihood ratios and diagnostic odds ratios (DORs) of clinical signs and symptoms. The DOR was calculated as the odds of signs or symptoms …

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