Celiac
Answer Bank

Frequently Asked Questions

Q

How do you know that 1/3 of the U.S. population has the genes for celiac disease?

Epidemiologic studies testing large numbers of normal, healthy people from the population at large have established both the prevalence of the HLA-DQ2/DQ8 genes as well as the prevalence of celiac disease (from those with highly positive tTG). Once one knows that the disease is found in 1/100 of the general population, then one can calculate the number of diagnosed patients and the percentage of undiagnosed. June, 2013

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