Familial primary biliary cirrhosis reassessed: a geographically-based population study
Familial primary biliary cirrhosis reassessed: a geographically-based population study
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DOI:
10.1016/s0168-8278(99)80097-x
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发表时间:
1999-03-01
影响因子:
25.7
通讯作者:
James, OFW
中科院分区:
文献类型:
--
作者:
Jones, DEJ;Watt, FE;James, OFW
Background/Aims: Development of primary biliary cirrhosis in the close relatives of patients with the disease has been reported in several series, suggesting a genetic component to disease susceptibility. In this study we set out to calculate, as accurately as possible, the prevalence of familial primary biliary cirrhosis in a geographically-based population. Using local population prevalence data, we have also calculated the first-degree relative, sibling and offspring relative risks of overt primary biliary cirrhosis development.Methods: All patients with definite or probable primary biliary cirrhosis in the city of Newcastle-upon-Tyne, England, were identified by an exhaustive case-finding search and were prospectively interviewed by a single investigator. Full details of family pedigree and familial primary biliary cirrhosis history were obtained.Results: One hundred and seventy-three patients were identified, with 160 participating in the study. Thirteen reported a family history of primary biliary cirrhosis. In three cases, both relative pairs were within the study group. The prevalence of a positive family history of primary biliary cirrhosis was therefore 10/ 157 (6.4% [95% Confidence Interval 2.6-10.2%]), 8/10 cases occurring in first-degree relatives. The patients had a total of 1118 first-degree relatives Give or dead) and 468 siblings. The first-degree relative prevalence of primary biliary cirrhosis was 0.72% [0.2-1.2%] (siblings 0.41% [-0.2-1.0%]). The offspring prevalence was 1.2% [0.04-2.4%], (2.3% [0.1-4.5%] for daughters). The sibling relative risk (lambda(s)) was 10.5.Conclusions: The overall prevalence of definite or probable primary biliary cirrhosis in the first-degree relatives of existing patients is