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AWEsome Risk Calculator

Designed by Zoe C Brooks Release 1.02 July 2020
Manage Risk, Not Stats!

Impact of Prevalence on NUMBER of false-positive and false-negative test results

Impact of Prevalence
Impact of Prevalence


Impact of PPA (sensitivity) on NUMBER of false positive and false-negative test results

Impact of PPA (sensitivity)
Impact of PPA (sensitivity)

Impact of PNA (specificity) on the NUMBER of false positive and false-negative test results

Impact of PNA (specifity)
Impact of PNA (specifity)

Impact of Prevalence, PPA and PNA on PROBABILITY of False Positive and Negative Results

Impact of Change on Probability of False Positives
Impact of Change on Probability of False Negatives

Impact of Prevalence, PPA and PNA on clinical and patient cost of false results per 1,000,000 samples tested

Include in Costs Include in Costs
Currency Symbol True Pos True Neg False Pos False Neg
Costs to obtain, perform and report initial test
Average cost of clinical treatment
Cost of contact tracing
Avg cost to patient or contact for self isolation
Confirm with orthogonal test
Other cost
R0 or Reff (# people infected by one positive person)
Cost varies with prevalence
Clinical & Patient cost per True Positive
Clinical & Patient cost per True Negative
Clinical cost per False Positive
Clinical cost per False Negative
Impact of Change on Cost of False Positives per 1,000,000 results
Impact of Change on Cost of False Negatives per 1,000,000 results