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by saint_abroad
1797 days ago
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> Drug tests generally produce false-positive results in 5% to 10% of cases and false negatives in 10% to 15% of cases, new research shows. Most often, some tests have high sensitivity (no false negatives) whilst others have high specificity (no false positives). (Rarely both.) So, for example, this is the reason why a positive RT-PCR test has more weight than a negative test because of the test’s high specificity but moderate sensitivity. Lumping together false positive stats (for low-specificity tests) with false negative stats (for low-sensitivity tests) is misleading at best. |
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