Volume 49, Issue 6 pp. 644-653
SYSTEMATIC REVIEW WITH META-ANALYSIS

Systematic review with meta-analysis: extrahepatic manifestations in chronic hepatitis C virus-infected patients in East Asia

Zobair M. Younossi

Corresponding Author

Zobair M. Younossi

Falls Church, Virginia

Correspondence

Zobair M. Younossi, Betty and Guy Beatty Center for Integrated Research, Claude Moore Health Education and Research Building, Falls Church, VA.

Email: [email protected]

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Linda Henry

Linda Henry

Falls Church, Virginia

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Janus P. Ong

Janus P. Ong

Manila, Philippines

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Atsushi TanakaYuichiro Eguchi

Yuichiro Eguchi

Saga, Japan

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Masashi Mizokami

Masashi Mizokami

Tokyo, Japan

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Young-Suk LimYock Young Dan

Yock Young Dan

Singapore

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Ming-Lung Yu

Ming-Lung Yu

Kaohsiung, Taiwan

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Maria Stepanova

Maria Stepanova

Washington, District of Columbia

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First published: 13 February 2019
Citations: 31
Authors’ complete affiliations are listed in Appendix section.
As part of AP&T's peer-review process, a technical check of this meta-analysis was performed by Dr Y Yuan. The Handling Editor for this article was Professor Grace Wong, and it was accepted for publication after full peer-review.
Funding information This study is funded by Gilead Sciences.

SUMMARY

Background

Although the prevalence of extrahepatic manifestations of chronic hepatitis C virus (HCV) infection has been reported from Western countries, their prevalence in East Asian countries is not well known.

Aim

To perform a systematic review to quantify the prevalence of selected extrahepatic manifestations of HCV among patients from East Asia.

Methods

Medline, CINAHL, EMBASE, Cochrane and country-specific databases were reviewed according to standard guidelines for meta-analyses. Only articles with patients from East Asian countries were included.

Results

After review, 34 articles were selected (Japan = 9; China = 5, Korea = 3, Taiwan = 16, multiple countries = 1) with 646 228 subjects, 66 436 with HCV. Mean age for HCV-infected patients was 56 years (range 41-72 years), 50% were male (range 26%-73%). The pooled prevalence of type 2 diabetes in East Asian HCV patients was 19.0% (95% confidence interval 15.6%-22.9%) (n = 19 studies) with an increased risk when compared to non-HCV: odds ratio (OR) 1.58 (1.28-1.94). The prevalence of chronic kidney disease in HCV was 9.2% (5.0%-16.2%) (n = 7 studies), also with a significantly increased risk: OR=1.98 (1.41-2.77). Pooled prevalence of cardiovascular disease in HCV was 8.6% (3.5%-19.9%) (n = 6 studies), also with an increased risk: OR = 1.55 (1.21-1.98). The prevalence of lichen planus in HCV was 8.9% (3.6%-20.6%) (n = 6 studies) while the prevalence of rheumatoid arthritis was 4.5% (0.6%-25.7%) (n = 4 studies).

Conclusions

These data show increased risk of developing extrahepatic manifestations in East Asian patients with HCV. Both hepatic and extrahepatic manifestations of the infection should be used to accurately determine the total burden of the disease in the region.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.