pdragon04 sends in the hardly surprising news that direct-to-consumer genetic testing isn't predicting diseases as well as they claim. "...[Francis] Collins, who played a central role in the Human Genome Project and is rumored to be the next head of the National Institutes of Health, announced at the Consumer Genetics Conference in Boston last week that he had had his genome analyzed [using a made-up name] by the big three of direct-to-consumer genetic testing: 23andMe, Navigenics, and DecodeMe. Collins said that sequence-wise, the tests 'appear to be highly accurate': there were almost no differences in the genotype information generated in the three different analyses. But there were significant differences in the numbers of genetic variations used to calculate disease risk, as well as the final risk score. ... For example, one company used 5 single nucleotide polymorphisms, or SNPs, to calculate risk for a particular disease, pronouncing Collins at low risk. Another used 10 SNPs, placing him at high risk, and the third used 15, concluding that he is at average risk."
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