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Conference Paper: Prevalence of past or current Hepatitis B infection and factors for non-vaccination in Chinese patients with inflammatory bowel diseases

TitlePrevalence of past or current Hepatitis B infection and factors for non-vaccination in Chinese patients with inflammatory bowel diseases
Authors
Issue Date2013
PublisherThe 1st AOCC Annual Meeting.
Citation
The 1st Annual Meeting of Asian Organization for Crohn's and Colitis (AOCC 2013), Tokyo, Japan, 13-14 June 2013. In Poster Oral Abstracts, 2013, p. 187, abstract PO-46 How to Cite?
AbstractInformation on the prevalence and natural history of chronic hepatitis B (HBV) among Asian IBD patients are scarce. Moreover, the prevalence of HBV vaccination coverage in Asian IBD patients remains unknown. AIM: We determined the prevalence and clinical course of current and past HBV infection among Chinese IBD patients. We also determined the proportion of Chinese IBD patients without protective antibody against HBV and factors associated with non-vaccination. METHODS: All patients attending our IBD Clinic had blood tests for viral hepatitis B markers. The prevalence of current and past infection with HBV, and effective HBV vaccination were determined. We also identified for risk factors associated with non-vaccination. RESULTS: A total of 267 Chinese IBD (166 ulcerative colitis and 101 Crohn’s disease) patients were studied. The mean follow up was 10.5 years. Current HBV infection was detected in 6.7% patients whereas 28.5% had evidence of past HBV infection. One hundred and two (38.2%) patients had no detectable anti-HBs antibodies. Multivariate analysis found that young age of diagnosis (OR 1.021; 95% CI 1.00 – 1.04) and the use of thiopurines (OR 0.51; 95%CI 0.29 – 0.91) were associated with absence of anti-HBs. Deranged liver function was detected in 27 (10.1%) IBD patients including three (16.7%) HBsAg-positive patients. The corresponding proportion of patients with liver derangement was 7.9% in patients with past HBV infection, 8.9% in HBsAg-negative patients without anti-HBs and 11.2% in patients with effective HBV vaccination (P = 0.71). CONCLUSION: Current and past infection with HBV was detected in about one-third of Chinese IBD patients. Approximately 40% of IBD patients lacked protective antibody against HBV. The use of thiopurines and young age of diagnosis was associated with non-vaccination among Chinese IBD patients. A more intensive HBV vaccination program with regular monitoring of anti-HBs may be needed in this group of patients.
DescriptionPoster Oral: PO-46
The Conference program's website is located at http://jsibd.jp/1staocc/program.html
Persistent Identifierhttp://hdl.handle.net/10722/185023

 

DC FieldValueLanguage
dc.contributor.authorLeung, WK-
dc.contributor.authorLiu, KSH-
dc.contributor.authorSeto, WKW-
dc.contributor.authorChan, KH-
dc.contributor.authorTong, TSM-
dc.contributor.authorHung, IFN-
dc.date.accessioned2013-07-15T10:23:54Z-
dc.date.available2013-07-15T10:23:54Z-
dc.date.issued2013-
dc.identifier.citationThe 1st Annual Meeting of Asian Organization for Crohn's and Colitis (AOCC 2013), Tokyo, Japan, 13-14 June 2013. In Poster Oral Abstracts, 2013, p. 187, abstract PO-46-
dc.identifier.urihttp://hdl.handle.net/10722/185023-
dc.descriptionPoster Oral: PO-46-
dc.descriptionThe Conference program's website is located at http://jsibd.jp/1staocc/program.html-
dc.description.abstractInformation on the prevalence and natural history of chronic hepatitis B (HBV) among Asian IBD patients are scarce. Moreover, the prevalence of HBV vaccination coverage in Asian IBD patients remains unknown. AIM: We determined the prevalence and clinical course of current and past HBV infection among Chinese IBD patients. We also determined the proportion of Chinese IBD patients without protective antibody against HBV and factors associated with non-vaccination. METHODS: All patients attending our IBD Clinic had blood tests for viral hepatitis B markers. The prevalence of current and past infection with HBV, and effective HBV vaccination were determined. We also identified for risk factors associated with non-vaccination. RESULTS: A total of 267 Chinese IBD (166 ulcerative colitis and 101 Crohn’s disease) patients were studied. The mean follow up was 10.5 years. Current HBV infection was detected in 6.7% patients whereas 28.5% had evidence of past HBV infection. One hundred and two (38.2%) patients had no detectable anti-HBs antibodies. Multivariate analysis found that young age of diagnosis (OR 1.021; 95% CI 1.00 – 1.04) and the use of thiopurines (OR 0.51; 95%CI 0.29 – 0.91) were associated with absence of anti-HBs. Deranged liver function was detected in 27 (10.1%) IBD patients including three (16.7%) HBsAg-positive patients. The corresponding proportion of patients with liver derangement was 7.9% in patients with past HBV infection, 8.9% in HBsAg-negative patients without anti-HBs and 11.2% in patients with effective HBV vaccination (P = 0.71). CONCLUSION: Current and past infection with HBV was detected in about one-third of Chinese IBD patients. Approximately 40% of IBD patients lacked protective antibody against HBV. The use of thiopurines and young age of diagnosis was associated with non-vaccination among Chinese IBD patients. A more intensive HBV vaccination program with regular monitoring of anti-HBs may be needed in this group of patients.-
dc.languageeng-
dc.publisherThe 1st AOCC Annual Meeting.-
dc.relation.ispartof1st Annual Meeting of Asian Organization for Crohn's and Colitis, AOCC 2013-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titlePrevalence of past or current Hepatitis B infection and factors for non-vaccination in Chinese patients with inflammatory bowel diseases-
dc.typeConference_Paper-
dc.identifier.emailLeung, WK: hku75407@hku.hk-
dc.identifier.emailSeto, WKW: wkseto2@hku.hk-
dc.identifier.emailTong, TSM: tongsma@hkucc.hku.hk-
dc.identifier.emailHung, IFN: ivanhung@hkucc.hku.hk-
dc.identifier.authorityLeung, WK=rp01479-
dc.identifier.authoritySeto, WKW=rp01659-
dc.identifier.authorityHung, IFN=rp00508-
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros216200-
dc.identifier.spage187, abstract PO-46-
dc.identifier.epage187, abstract PO-46-
dc.publisher.placeJapan-

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