Evidence map›Paper›PMID 22799744›Full record

SynthesisBMC cancer2012

Hepatitis viruses infection and risk of intrahepatic cholangiocarcinoma: evidence from a meta-analysis.

Yanming Zhou, Yanfang Zhao, Bin Li, Jiyi Huang, Lupeng Wu, Donghui Xu, Jiamei Yang, Jia He

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMC cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 6 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Yanming ZhouDepartment of Hepato-Biliary-Pancreato-Vascular Surgery, First affiliated Hospital of Xiamen University, Xiamen, China.
Yanfang Zhao
Bin Li
Jiyi Huang
Lupeng Wu
Donghui Xu
Jiamei Yang
Jia He

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies investigating the association between Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections and intrahepatic cholangiocarcinoma (ICC) have reported inconsistent findings. We conducted a meta-analysis of epidemiological studies to explore this relationship.

methodsA comprehensive search was conducted to identify the eligible studies of hepatitis infections and ICC risk up to September 2011. Summary odds ratios (OR) with their 95% confidence intervals (95% CI) were calculated with random-effects models using Review Manager version 5.0.

resultsThirteen case-control studies and 3 cohort studies were included in the final analysis. The combined risk estimate of all studies showed statistically significant increased risk of ICC incidence with HBV and HCV infection (OR = 3.17, 95% CI, 1.88-5.34, and OR = 3.42, 95% CI, 1.96-5.99, respectively). For case-control studies alone, the combined OR of infection with HBV and HCV were 2.86 (95% CI, 1.60-5.11) and 3.63 (95% CI, 1.86-7.05), respectively, and for cohort studies alone, the OR of HBV and HCV infection were 5.39 (95% CI, 2.34-12.44) and 2.60 (95% CI, 1.36-4.97), respectively.

conclusionsThis study suggests that both HBV and HCV infection are associated with an increased risk of ICC.

Indexed as

Bile Duct NeoplasmsBile Ducts, IntrahepaticCase-Control StudiesCholangiocarcinomaCohort StudiesHepatitis BHepatitis CHumansLiver NeoplasmsOdds RatioPublication Bias

Identifiers

PMID22799744
PMCPMC3411483

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.