An increased risk of urinary tract infection precedes development of primary biliary cirrhosis

BMC Gastroenterology

Research Article

Fumi K Varyani¹  Joe West²  Timothy R Card³ 

[1] Division of Epidemiology and Public Health, University of Nottingham, Clinical Sciences Building Phase 2, Hucknall Road, NG5 1PB, Nottingham, UK;Division of Epidemiology and Public Health, University of Nottingham, Clinical Sciences Building Phase 2, Hucknall Road, NG5 1PB, Nottingham, UK;Nottingham Digestive Diseases Centre Biomedical Research Unit, University of Nottingham, Queens Medical Centre, Derby Road, NG7 2UH, Nottingham, UK;Division of Epidemiology and Public Health, University of Nottingham, Clinical Sciences Building Phase 2, Hucknall Road, NG5 1PB, Nottingham, UK;Nottingham Digestive Diseases Centre Biomedical Research Unit, University of Nottingham, Queens Medical Centre, Derby Road, NG7 2UH, Nottingham, UK;Department of Gastroenterology, King's Mill Hospital, Mansfield Road, Sutton-In-Ashfield, NG17 4JL, UK;

关键词: PBC;    UTI;    Aetiology;    AMA;    Antimitochondrial;   

DOI  :  10.1186/1471-230X-11-95

 received in 2011-02-11, accepted in 2011-08-26,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundPrimary Biliary Cirrhosis is known to be associated with Urinary Tract Infections (UTIs), but whether these precede or follow the liver disease is unclear. We have therefore attempted to determine whether UTIs are more common in people with Primary Biliary Cirrhosis (PBC) prior to their diagnosis.MethodsWe conducted a case control study in the General Practice Research Database. All cases of PBC first recorded at least one year after entry to the dataset were selected along with up to 10 controls matched for age, sex. A second unmatched control group who had Chronic Liver Diseases but not PBC were chosen. The main exposures studied were the occurrence of Urinary tract infections and pyelonephritis at least one or at least five years before diagnosis. We also performed an analysis restricted to those younger than 55 at diagnosis, as we hypothesized the relationship to be stronger in the younger age group.ResultsPBC is associated with UTI prior to diagnosis, OR 1.50 (CI 1.26-1.78), which was similar 5 years prior to diagnosis and after adjusting for smoking. The strongest relationships were observed in pyelonephritis exposures five years before diagnosis in cases under 55 years: adjusted odds ratios were 2.60 (1.02-6.63) in comparison with matched general population controls and adjusted odds ratios were OR 2.45 (1.02-5.59) in the comparison with chronic liver disease controls.ConclusionsWe found that the association between urosepsis and PBC is specific to this disease and precedes the diagnosis of PBC in a manner not previously observed in human data. This is consistent with a causal relationship.

【 授权许可】

Unknown   
© Varyani et al; licensee BioMed Central Ltd. 2011. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.