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Scand J Gastroenterol ; 38(7): 747-50, 2003 Jul.
Article in English | MEDLINE | ID: mdl-12889561

ABSTRACT

BACKGROUND: The aims of this work were (a) to evaluate the prevalence of coeliac disease (CD) in a large sample of the Brazilian general population and (b) to compare CD prevalence between children and adults. METHODS: The study group comprised 4405 subjects (2629 F and 1776 M). Age distributions were 2034 (1-14 years), 848 (15-29), 584 (30-44), 667 (45-59) and 272 above 60. The immunoglobulin A antiendomysial antibody (IgA-EMA) test was used as the serological screening tool. All sera were submitted to turbidimetric measurement of IgA levels and those with IgA deficiency to the IgG antigliadin (IgG-AGA) test. The small intestinal biopsy was recommended for subjects showing either (a) IgA-EMA positivity or (b) selective IgA deficiency (SigAD) and IgG-AGA positivity. RESULTS: There were 16 EMA positive out of 4405 sera tested. SigAD was found in five cases (one adult and four children). Two of these children tested positive for IgG-AGA and underwent jejunal biopsy that, in both cases, disclosed a normal mucosa. Overall, 17 out of 18 eligible subjects performed the small intestinal biopsy. The prevalence of biopsy-proven CD in this study group was 3.41 per 1000 individuals. If all 18 EMA-positive patients were included, the overall prevalence would become 3.63 per 1000. The prevalence in adults and children was 2.11 per 1000 and 5.44 per 1000, respectively. CONCLUSION: This work supports previous findings showing that CD is not a rare disorder in Brazil and that there is an unexplained difference in the prevalence of CD between adults and children.


Subject(s)
Celiac Disease/epidemiology , Adolescent , Adult , Age Distribution , Age Factors , Ambulatory Care , Brazil/epidemiology , Celiac Disease/diagnosis , Celiac Disease/etiology , Child , Child, Preschool , Female , Gliadin/immunology , Hospitals, University , Humans , Immunoglobulin A/blood , Immunoglobulin G/blood , Infant , Male , Middle Aged , Myofibrils/immunology , Prevalence
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