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You only need one false positive test result that ends up with a colonoscopy to understand how costly and uncomfortable these errors can be. (I'm using an unco
by dangerlibrary 5y ago
You only need one false positive test result that ends up with a colonoscopy to understand how costly and uncomfortable these errors can be.
(I'm using an uncomfortable and illustrative example, but a colonoscopy is honestly pretty safe and boring as invasive clinical diagnostic procedures go)
- theptip 5y agoPerhaps a better example than you intended -- recently colonoscopies are being considered more risky as a regular screening tool, because the procedure itself can result in harms, including (rarely) death. Not an expert here, but it seems they are still used in a fairly wide age group, but the recent trend is to be more cautious about their usage, as particularly for older patients they are more risky vs. the potential benefits. [1] However I think this concern would be reduced if we had better first-line screening like the tests in TFA; the harms come from using a relatively-risky assay like colonoscopy for regular screening in healthy individuals, whereas if we had better noninvasive screening, the colonoscopy could be reserved for patients where there's a higher probability of a positive diagnosis. [1]: https://jamanetwork.com/journals/jama/fullarticle/2529486 https://jamanetwork.com/journals/jama/fullarticle/2529486