What is the incidence of undiagnosed celiac disease in the US?

Updated: Oct 10, 2018
  • Author: Stephan U Goebel, MD; Chief Editor: BS Anand, MD  more...
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Answer

Because the historical prevalence and long-term outcome of undiagnosed celiac disease were unknown, Rubio-Tapia et al collected serologic information on 3 cohorts [9] : 9,133 healthy young adults from whom sera were collected between 1948 and 1954, and 12,768 gender-matched subjects from 2 recent cohorts, one whose years of birth were similar to those of members of the first cohort, and the other whose age at sampling was similar.

The sera were first tested for tissue transglutaminase, then, if abnormal, for endomysial antibodies. During 45 years of follow-up in the older cohort, all-cause mortality was nearly 4-fold greater in persons with undiagnosed celiac disease than among those who were seronegative (hazard ratio = 3.9; 95% confidence interval, 2.0-7.5; P < 0.001). [9]  Comparison of the older and more recent cohorts suggested that undiagnosed celiac disease in the United States has increased dramatically in the past half century: 0.2% of the older cohort had undiagnosed celiac disease compared with 0.8% of the cohort with similar years of birth and 0.9% of those with similar age at sampling (P ≤0.0001). [9]


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