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Annals of Family Medicine 2:33-40 (2004)
© 2004 Annals of Family Medicine, Inc.
doi: 10.1370/afm.34
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A Cost-Benefit Analysis of Testing for Influenza A in High-Risk Adults

William J. Hueston, MD and Joseph J. Benich, III

Department of Family Medicine, Medical University of South Carolina, Charleston, SC



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  		Figure 1. Decision tree used for the cost-benefit analysis.

 





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  		Figure 2: Cost-benefit for testing or treatment for different probability of influenza.

Note: Lines represent cost of illness episode based on the following strategies: Treat all (diamonds), test and treat patient with positive test results (squares), and treat none (triangles).

 



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  		Figure 3: Threshold analysis for individual benefit.

Note: Either empiric treatment (3A) or test before treatment (3B) is preferred to no treatment for amantadine (diamonds), rimantadine (squares), zanamivir (triangle), and oseltamivir (X).

 




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