Blood test powered by AI could catch osteoarthritis 8 years earlier than X-ray, early data show

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A simple blood test may be able to detect knee osteoarthritis in people who’ve yet to develop any symptoms — and up to eight years before an X-ray would be able to detect changes in their bones — scientists say.

In a new study, researchers analyzed the blood of 200 white women who had no symptoms of osteoarthritis when their blood was first sampled and were deemed “low-risk” of developing it. Their risk level was based on traditional risk factors, such as having a history of knee injury or a prior knee surgery. 



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