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Underestimated Male Prevalence of Primary Biliary Cholangitis in China: Results of a 16-yr cohort study involving 769 patients.

Underestimated Male Prevalence of Primary Biliary Cholangitis in China: Results of a 16-yr cohort study involving 769 patients.
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Fan X, Wang T, Shen Y, Xi X, Yang L,


Fan X, Wang T, Shen Y, Xi X, Yang L, (click to view)

Fan X, Wang T, Shen Y, Xi X, Yang L,

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Scientific reports 2017 07 267(1) 6560 doi 10.1038/s41598-017-06807-7
Abstract

For primary biliary cholangitis (PBC), a sex ratio was reported to be significantly lower than previously cited in the West; we sought to evaluate sex ratio and long-term outcomes in PBC by studying a PBC cohort at a high-volume hospital from January 2001 to July 2016. A retrospective analysis including 769 PBC patients was conducted. The gender ratio was 6.1:1. Of the patients, 30.6% had one or more extrahepatic autoimmune (EHA) conditions. The proportion of patients with decompensated PBC at diagnosis increased from 25.0% in period 1 to 47.0% in period 4 (p < 0.05). Of the 420 patients without complications on presentation, the Kaplan-Meier estimate revealed distinct outcomes between non-cirrhotic PBC and cirrhotic PBC, with estimated mean survival times of 145.1 months and 104.5 months, respectively (p < 0.001). According to a subgroup analysis, gender and anti-mitochondrial antibody (AMA) status did not affect long-term prognosis, whereas patients with EHA conditions showed better prognoses. This study reveals evolving trends in male prevalence similar to their Western counterparts. Cirrhotic PBC patients were distinct from those with non-cirrhotic PBC at diagnosis based on difference in long-term outcome.

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