The overall prevalence of CD is around 1% in several Western countries. An Argentinian study shows a 1.167 prevalence of CD in studied patients, being doubled for women than men. Another study in a closed population of the Health Plan of Hospital Italiano de Bs As estimated a prevalence of 0.22 CD diagnosis. In developed countries, for each diagnosed case there is an average of 5-10 cases that have not been diagnosed yet.