How accurate are home DNA tests?

October 7, 2009 2:51:14 PM PDT
Scientists continue to explore how genes affect the risk of certain diseases. But companies are already offering people the chance to have their genes analyzed. Researchers wanted to find out how accurate these direct-to-consumer DNA profiles were. They compared the results provided from two companies.

And while the DNA scans were accurate, how the companies interpreted the scans differed greatly. That means one report would put a patient at risk for a certain disease, and another found no risk at all.

The study in the journal Nature warns consumers not to put too much faith in these genetic predictions.