Evidence map›Paper›PMID 34991533›Full record

ArticleBMC public health2022

Prevalence and incidence rates of laboratory-confirmed hepatitis B infection in South Africa, 2015 to 2019.

Shelina Moonsamy, Melinda Suchard, Pavitra Pillay, Nishi Prabdial-Sing

Abstract read
In one paragraph

Article in BMC public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

  1. Review
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  4. Knowledge, attitudes and practices to hepatitis B among South African primary healthcare staff.African journal of primary health care & family medicine · 2025
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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

4 authors.

Shelina MoonsamyCentre for Vaccines and Immunology, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa. shelinam@nicd.ac.za.
Melinda SuchardCentre for Vaccines and Immunology, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa.
Pavitra PillayDepartment of Biomedical and Clinical Technology, Faculty of Health Sciences, Durban University of Technology, Durban, South Africa.
Nishi Prabdial-SingCentre for Vaccines and Immunology, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis B virus (HBV), a global public health threat, is targeted for elimination by 2030. As national HBV prevalence and incidence is lacking for South Africa, our study aimed to provide such data in the public health sector.

methodsWe analysed laboratory-confirmed HBV data from 2015 to 2019 to determine annual prevalence and incidence rates of HBV infection per 100,000 population, HBsAg and anti-HBc IgM test positivity rates, and HBsAg and anti-HBc IgM testing rates per 100,000 population. Time trend and statistical analyses were performed on HBsAg and anti-HBc IgM test positivity rates.

resultsThe national prevalence rate of HBV infection per 100,000 population increased from 56.14 in 2015 to 67.76 in 2019. Over the five years, the prevalence rate was higher in males than females, highest amongst individuals 25 to 49 years old and highest in Gauteng province. The HBsAg test positivity rate dropped from 9.77% in 2015 to 8.09% in 2019. Over the five years, the HBsAg test positivity rate was higher in males than females, amongst individuals 25 to 49 years old and amongst individuals of Limpopo province. Amongst HBsAg positive children under 5 years old, the majority (65.7%) were less than a year old. HBsAg testing rates per 100,000 population were higher in females under 45 years of age and in males 45 years and above. The national incidence rate of acute HBV infection per 100,000 population dropped from 3.17 in 2015 to 1.69 in 2019. Over the five-year period, incidence rates were similar between males and females, highest amongst individuals 20 to 39 years old and highest in Mpumalanga province. Amongst individuals 20 to 24 years old, there was a substantial decline in the incidence and anti-HBc IgM test positivity rates over time. Anti-HBc IgM testing rates per 100,000 population were higher in females under 40 years of age and in males 40 years and above.

conclusionCritical to hepatitis B elimination is strengthened infant vaccination coverage and interruption of vertical transmission. Transmission of HBV infection in adults may be reduced through heightened awareness of transmission routes and prevention measures.

Indexed as

Hepatitis BHepatitis B Surface AntigensAdultChildChild, PreschoolFemaleHepatitis B AntibodiesHepatitis B virusHumansImmunoglobulin MIncidenceInfantMaleMiddle AgedPrevalenceSouth AfricaHepatitis B AntibodiesHepatitis B Surface AntigensImmunoglobulin MAcuteAnti-HBc IgMHBsAgHepatitis BIncidencePrevalenceTest positivity rates

Identifiers

PMID34991533
PMCPMC8739689

What OpenQuestion holds

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Registered trials

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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.