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What's the false positive rate of the test? The UK has test 16,659 people and confirmed 85 of them, ~0.5% of those tested, as infected. How many of them are f
by oldgradstudent 7y ago
What's the false positive rate of the test?
The UK has test 16,659 people and confirmed 85 of them, ~0.5% of those tested, as infected.
How many of them are false positives, if any?
- raverbashing 7y agoI know in some places two tests are done, by different labs preferably, for confirmation. Though it might be possible that the false negative rate is higher than the false positive rate.
- srl 7y ago(I don't know, and have been trying to find the answer, and have failed.) Best I can do: Assuming that tests performed in different countries are comparable [1], your statistic would set an upper bound on the false positive rate, which could then be applied to other countries. The U.S. has performed 3.6k tests and has ~150 confirmed cases. If the false positive rate is the same, the vast majority of those cases have to be real. [1] Big assumption.
- oldgradstudent 7y agoThe assumption may be wrong: > The rollout of a CDC-designed test kit to state and local labs has become a fiasco because it contained a faulty reagent. https://www.sciencemag.org/news/2020/02/united-states-badly-bungled-coronavirus-testing-things-may-soon-improve https://www.sciencemag.org/news/2020/02/united-states-badly-...
- rasz 7y agoDepending on the test used, there might be >50% false negatives in there.