ArticleAnnals of gastroenterology
Geographic distribution and demographic patterns of primary biliary cholangitis and autoimmune hepatitis in Colombia: a national population-based administrative study (2018-2024).
Article in Annals of gastroenterology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Autoimmune liver diseases, including primary biliary cholangitis (PBC) and autoimmune hepatitis (AIH), are rare chronic conditions with significant morbidity. However, population-based epidemiological data from Latin America remain limited. This study aimed to describe the geographic distribution and demographic patterns of PBC and AIH in Colombia between 2018 and 2024. Methods: A descriptive, cross-sectional population-based study was conducted using data from the Comprehensive Social Protection Information System (SISPRO) of the Colombian Ministry of Health. Individuals with at least 1 recorded diagnosis coded as K74.3 (PBC) or K75.4 (AIH) according to the International Classification of Diseases, 10 Results: A total of 6504 PBC cases and 11,225 AIH cases were identified. The estimated national administrative prevalence was 14.7 per 100,000 population for PBC and 17.0 per 100,000 for AIH. Both conditions showed marked female predominance. PBC was more frequent in women aged 50-69 years. However, AIH demonstrated a broader age distribution, affecting individuals from young adulthood to older age. Higher prevalence estimates were observed in multiple northern regions, particularly in the Caribbean region. Conclusions: This first nationwide administrative assessment of PBC and AIH in Colombia demonstrates marked sex differences and regional variation, highlighting the need to improve diagnostic awareness and strengthen epidemiological surveillance of autoimmune liver diseases in Latin America.
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