ReviewJGH open : an open access journal of gastroenterology and hepatology2020
Occult hepatitis B virus infection in Sudan: A systematic review and meta-analysis.
Review in JGH open : an open access journal of gastroenterology and hepatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
13 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Epidemiology of occult hepatitis B and C in Africa: A systematic review and meta-analysis.Journal of infection and public health · 2022Pooled it
- Global epidemiology of occult hepatitis B virus infections in blood donors, a systematic review and meta-analysis.PloS one · 2022Pooled it
- The Investigation of Hepatitis B Vaccine Immune Responses in Occult Hepatitis B Virus-Infected Patients.Frontiers in immunology · 2022Trial
- Prevalence and biomarker profiles of HBV/HDV coinfection and occult HBV infection among patients attending Bimbilla Hospital, Northern Ghana.BMC infectious diseases · 2026Article
- Serological detection and epidemiological analysis of HBV among butchers in Khartoum State.Scientific reports · 2026Article
- Seroprevalence and Risk Factors of Hepatitis B Virus Among Newly Diagnosed Cancer Patients in Khartoum State: Implications for Chemotherapy Management and Screening Protocols.JGH open : an open access journal of gastroenterology and hepatology · 2025Article
- Transfusion-transmitted occult hepatitis B virus infection: current understanding, challenges, and its implication in blood safety.Frontiers in immunology · 2025Review
- Article
- Recurrent abdominal wall mass in a hepatitis B-positive male: An unusual case of lumbar mycetoma.Clinical case reports · 2023Article
- Global burden of hepatitis B virus: current status, missed opportunities and a call for action.Nature reviews. Gastroenterology & hepatology · 2023Review
- Prevalence of occult hepatitis B virus infection in Egypt: a systematic review with meta-analysis.The Journal of the Egyptian Public Health Association · 2023Review
- Sexual Dimorphism in Chronic Hepatitis B Virus (HBV) Infection: Evidence to Inform Elimination Efforts.Wellcome open research · 2022Review
- Occult Hepatitis B Infection among Hemodialysis in Tabriz, Northwest of Iran: Prevalence and Mutations within the S Region.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In its occult form, hepatitis B virus infection can only be detected using molecular techniques such as polymerase chain reaction, increasing the cost of the screening process. Certain population subgroups are considered to have a higher risk of transmission and reactivation of occult hepatitis B virus infection (OBI). This review aims to estimate the prevalence of OBI among these high-risk groups in Sudan. It was conducted under the PRISMA guidelines, targeting the literature available in MEDLINE/PubMed, ScienceDirect, Google Scholar, and Cochrane Library databases. Full-text articles published in the last 10 years that provide prevalence estimates of OBI in Sudan were examined for fulfillment of eligibility criteria. Quality assessment of selected articles was performed using the critical appraisal tool reported by Munn
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Registered trials
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.