Epidemiology

The prevalence of ICP is influenced by genetic and environmental factors. UK studies typically report rates around 0.7%, with higher rates in women of Indian-Asian and Pakistani-Asian ethnicity.[6][22][23] Worldwide, the highest rates of disease are seen in Chile (4%), with more recent studies in the US, China, and Australia reporting rates between 0.1% and 2%, and higher rates in women of American Indian and Hispanic ethnicities.[4][18][24][25][26][27][28][29][30]

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