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| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 12
| Issue : 8 | Page : 284-287 |
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Association between hepatitis B virus/hepatitis C virus infection and primary hepatocellular carcinoma risk: A meta-analysis based on Chinese population
Libo Li, Xiaolin Lan
Department of Infection Disease, Lishui People's Hospital, Lishui, Zhejiang, P. R. China
| Date of Web Publication | 22-Feb-2017 |
Correspondence Address:
Xiaolin Lan
Department of Infection Disease, Lishui People's Hospital, Lishui 323000, Zhejiang
P. R. China
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0973-1482.200763
Objective: To assess the relationship between hepatitis B virus (HBV), hepatitis C virus (HCV), and HBV/HCV double infection and hepatocellular carcinoma risk in Chinese population.
Materials and Methods: The databases of PubMed and CNKI were electronic searched by reviewers according to the searching words of HBV, HCV, and hepatocellular carcinoma. The related case–control studies or cohort studies were included. The association between virus infection and hepatocellular carcinoma risk was demonstrated by odds ratio (OR) and 95% confidence interval (95% CI). The data were pooled by fixed or random effects model according to the statistical heterogeneity. The publication bias was assessed by Begg's funnel plot and Egger's linear regression test.
Results: Finally, 13 publications were included in this meta-analysis. For significant statistical heterogeneity (I2 = 99.8%,P = 0.00), the OR was pooled by random effects model. The pooled results showed that HBV infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 58.01, 95% CI: 44.27–71.75); statistical heterogeneity analysis showed that significant heterogeneity existed in evaluation of HCV infection and hepatocellular carcinoma risk across the included 13 studies I2 = 77.78%, P = 0.00). The OR was pooled by random effects model. The pooled results showed that HCV infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 2.34, 95% CI: 1.20–3.47); significant heterogeneity did not exist in evaluation HBV/HCV double infection and hepatocellular carcinoma risk for the included 13 studies (I2 = 0.00%,P = 0.80). The OR was pooled by fixed effects model. The pooled results showed that HBV/HCV double infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 11.39, 95% CI: 4.58–18.20). No publication bias was found in the aspects of HBV, HCV, and HBV/HCV double infection and hepatocellular carcinoma.
Conclusion: For Chinese population, HBV, HCV or HBV/HCV double infection can significantly increase the risk of developing hepatocellular carcinoma. Keywords: Hepatitis B virus, hepatitis C virus, hepatocellular carcinoma, meta-analysis
How to cite this article:
Li L, Lan X. Association between hepatitis B virus/hepatitis C virus infection and primary hepatocellular carcinoma risk: A meta-analysis based on Chinese population. J Can Res Ther 2016;12, Suppl S4:284-7 |
How to cite this URL:
Li L, Lan X. Association between hepatitis B virus/hepatitis C virus infection and primary hepatocellular carcinoma risk: A meta-analysis based on Chinese population. J Can Res Ther [serial online] 2016 [cited 2022 Jul 6];12, Suppl S4:284-7. Available from: https://www.cancerjournal.net/text.asp?2016/12/8/284/200763 |
| > Introduction | |  |
Hepatitis virus infection in China is common, especially for hepatic B virus infection. It was estimated about 1 in 10 people in China has been infected by hepatitis B virus (HBV).[1],[2] Epidemiology study has proven the significant association between HBV infection and hepatic risk.[3] However, for hepatitis C virus (HCV) infection or HBV and HCV double infection, the risk of developing hepatocellular carcinoma is not completely clear. In this meta-analysis, we assessed the HBV, HCV, and HBV/HCV double infection and hepatocellular carcinoma risk in Chinese population by pooling the open published data.
| > Materials and Methods | | |
The databases of PubMed and CNKI were electronic searched by reviewers according to the searching words of HBV, HCV, and hepatocellular carcinoma. The related case–control studies or cohort studies were included. The publication inclusion criteria were as follows: (1) Chinese population; (2) case–control study or cohort study; (3) HBV infection was defined as one of the hepatitis B surface antigen, hepatitis B envelope antigen, anti-Hbe, anti-HBc or HBV DNA positive; HCV infection was defined as one of the anti-HCV or HCV DNA positive; (4) hepatocellular carcinoma was confirmed by pathology, cytology, or imaging diagnosis. The number of cases, controls, odds ratio (OR), 95% confidence interval (CI), first author, and year of publication of each included study were extracted by reviewers.
Statistical analysis
STATA/SE 11.0 (StataCorp LP, http://www.stata.com) was used to do statistical analysis. The association between virus infection and hepatocellular carcinoma risk was demonstrated by OR and 95% CI. The OR was pooled by fixed or random effects model according to statistical heterogeneity. If significant heterogeneity existed (P < 0.05), random effects model was used otherwise fixed effects model was applied. The publication bias was assessed by Begg's funnel plot and Egger's linear regression test.
| > Results | | |
Information of the included papers
Five hundred and twenty-three publications were first identified. After reading the title and abstract, we excluded 445 studies for not suitable inclusion. Moreover, another 78 papers were excluded after reading the whole paper. Finally, 13 publications were included in this meta-analysis. The general information for the included 13 studies [4],[5],[6],[7],[8],[9],[10],[11],[12],[13],[14],[15],[16] is demonstrated in [Table 1].
Hepatitis B virus infection and hepatocellular carcinoma
Statistical heterogeneity was existed in evaluation HBV infection and hepatocellular carcinoma risk (I2 = 99.8%, P = 0.00). Hence, the OR was pooled by random effects model. The pooled results showed that HBV infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 58.01, 95% CI: 44.27–71.75) [Figure 1]. | Figure 1: The forest plot of association between hepatitis B virus infection and hepatocellular carcinoma
Click here to view |
Publication bias of evaluation hepatitis B virus infection and hepatocellular carcinoma
The Begg's funnel plot [Figure 2] and Egger's linear regression test (t = 0.16, P = 0.88) indicated no significant publication bias. | Figure 2: Begg's funnel plot for evaluation publication bias of hepatitis B virus and hepatocellular carcinoma
Click here to view |
Hepatitis C virus infection and hepatocellular carcinoma
Statistical heterogeneity analysis showed that significant heterogeneity existed in evaluation HCV infection and hepatocellular carcinoma risk across the included 13 studies (I2 = 77.78%, P = 0.00). The OR was pooled by random effects model. The pooled results showed that HCV infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 2.34, 95% CI: 1.20–3.47) [Figure 3]. | Figure 3: The forest plot of association between hepatitis C virus infection and hepatocellular carcinoma
Click here to view |
Publication bias of evaluation hepatitis C virus infection and hepatocellular carcinoma
The Begg's funnel plot [Figure 4] and Egger's linear regression test (t = 0.46, P = 0.66) indicated no significant publication bias. | Figure 4: Begg's funnel plot for evaluation publication bias of hepatitis C virus and hepatocellular carcinoma
Click here to view |
Hepatitis B virus/hepatitis C virus double infection and hepatocellular carcinoma
Significant heterogeneity did not exist in evaluation HBV/HCV double infection and hepatocellular carcinoma risk for the included 13 studies (I2 = 0.00%, P = 0.80). The OR was pooled by fixed effects model. The pooled results showed that HBV/HCV double infection can significantly increase the risk of developing hepatocellular carcinoma (OR = 11.39, 95% CI: 4.58–18.20) [Figure 5]. | Figure 5: The forest plot of association between hepatitis B virus and hepatitis C virus double infection and hepatic
Click here to view |
Publication bias of evaluation hepatitis B virus/hepatitis C virus infection and hepatocellular carcinoma
The Begg's funnel plot [Figure 6] and Egger's linear regression test (t = –0.20, P = 0.85) indicated no significant publication bias. | Figure 6: Begg's funnel plot for evaluation publication bias of hepatitis B virus/hepatitis C virus double infection and hepatocellular carcinoma
Click here to view |
| > Discussion | | |
Primary hepatocellular carcinoma is common in China for the high prevalence of HBV infection for Chinese people. It was reported that about 50% primary hepatocellular carcinoma happened in China.[17],[18] Jiangsu province, Zhejiang, and Fujian province had the highest prevalence of hepatocellular carcinoma with the mortality of 30/100,000.[19] The known risk factors for hepatocellular carcinoma were hepatitis virus infection, food contaminated by aflatoxin, cirrhosis, diabetes, etc.
In our present meta-analysis, we assessed the relationship between HBV, HCV, and HBV/HCV double infection and hepatocellular carcinoma risk in Chinese population. We searched PubMed and CNKI databases and initially included after reading the title and abstract, we excluded 445 studies for not suitable inclusion. Moreover, another 78 papers were excluded after reading the whole paper. Finally, 13 publications were included in this meta-analysis. All of the included 13 studies were published in Chinese. For the effect size of association between HBV, HCV, HBV/HCV double infection and hepatocellular carcinoma risk, we found significant heterogeneity for HBV or HCV infection and hepatocellular carcinoma but without significant heterogeneity for HBV/HCV double infection. Hence, the data were pooled by random effects model in HBV, HCV infection, and hepatocellular carcinoma risk. Moreover, data were pooled by fixed effects model for HBV/HCV double infection. Meta-analysis showed that significant association between HBV, HCV or HBV/HCV double infection and hepatocellular carcinoma risk. In this study, we found that people with HBV infection had 58.01 times higher risk of hepatocellular carcinoma risk than people without HBV infection. People with HCV or HBV/HCV double infection had 2.34 and 11.39 times higher risk for than normal people.
The occurrence of hepatocellular carcinoma is the result of a variety of factors. In general, considering of different regions, different lifestyle, and different genetic background worldwide, the main cause of hepatic cancer may different.[20] However, in China, a country with a high rate of hepatitis virus infection had a very important role for hepatocellular carcinoma incidence. Hence, big effort should be made for controlling the hepatitis virus infection which would be the best way to deal with hepatocellular carcinoma.
Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6]
[Table 1]
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