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Anyiwe K, Erman A, Hassan M, Feld JJ, Pullenayegum E, Wong WWL, Sander B. Characterising the effectiveness of social determinants of health-focused hepatitis B interventions: a systematic review. THE LANCET. INFECTIOUS DISEASES 2024; 24:e366-e385. [PMID: 38184004 DOI: 10.1016/s1473-3099(23)00590-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/31/2023] [Accepted: 09/14/2023] [Indexed: 01/08/2024]
Abstract
Social determinants of health are important in designing effective interventions for hepatitis B virus (HBV) infection. This systematic review characterises equity-oriented, social determinants of health-focused HBV interventions, and describes their effectiveness in terms of the prevention, care, or treatment of HBV in high-income countries. We searched electronic databases for central concepts of 'HBV', 'equity', 'social determinants of health', 'intervention', and 'Organization for Economic Co-operation and Development (OECD) countries'. Screening and data abstraction were conducted independently by two reviewers. Data were abstracted from 66 studies; articles with a comparative study design (n=36) were included in the narrative synthesis, highlighting social determinants of health domains of interventions, HBV-relevant health outcomes, and extra-health social determinants of health effects (ie, those effects that extend beyond health outcomes). Synthesis aligned with six emergent themes corresponding to HBV prevention and care: knowledge and education, diagnosis and screening, immunisation, care initiation, engagement with clinical care and treatment, and upstream prevention. Studies presented a heterogeneous array of HBV-relevant health outcomes. Most interventions were tailored for social determinants of health domains of race, ethnicity, culture, and language; drug use; and socioeconomic status. Across the themes, at least two-thirds of interventions showed comparative effectiveness for addressing HBV. Extra-health social determinants of health outcomes were observed for two studies. Considerable diversity in population-level approaches was observed regarding intervention goals and effectiveness; most interventions were effective at enhancing the prevention, care, or treatment of HBV.
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Affiliation(s)
- Kikanwa Anyiwe
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto General Hospital, University Health Network, Toronto, ON, Canada.
| | - Aysegul Erman
- Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Marian Hassan
- Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto General Hospital, University Health Network, Toronto, ON, Canada; London School of Hygiene & Tropical Medicine, London, UK
| | - Jordan J Feld
- Sandra Rotman Centre for Global Health, University of Toronto, Toronto, ON, Canada; Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Toronto Centre for Liver Disease, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Eleanor Pullenayegum
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
| | - William W L Wong
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto General Hospital, University Health Network, Toronto, ON, Canada; School of Pharmacy, University of Waterloo, Kitchener, ON, Canada; ICES, Toronto, ON, Canada
| | - Beate Sander
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto General Hospital, University Health Network, Toronto, ON, Canada; ICES, Toronto, ON, Canada; Public Health Ontario, Toronto, ON, Canada
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Ho E, Vanderlinden A, Govaerts L, De Fooz B, Van Damme P, Michielsen P, Vanwolleghem T. Opportunistic screening using point-of-care testing leads to successful linkage to care of HBV-infected migrant populations in a low endemic country. J Virus Erad 2024; 10:100369. [PMID: 38596321 PMCID: PMC11002856 DOI: 10.1016/j.jve.2024.100369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/11/2024] Open
Abstract
Background and aims In low endemic countries, screening for hepatitis B surface antigen (HBsAg) in migrants is cost-effective in reducing the disease burden of hepatitis B virus (HBV) infections, but linkage to care (LTC) remains a challenge. This study aims to guide future screening initiatives, with 3 objectives: 1. to compare LTC between different ethnic groups screened for HBsAg with point-of-care testing (POCT) in an outreach setting; 2. to estimate the proportion of HBsAg seropositivity for ethnic minorities; and 3. to investigate the association between seropositivity and HBV risk factors. Methods Opportunistic outreach screenings using finger prick HBsAg tests were performed at civic integration programmes between 11/2017 and 09/2022. If an individual tested positive, an appointment was given immediately at the outpatient hepatology clinic for follow-up and confirmation of HBsAg positivity in blood. Dedicated personnel contacted these individuals to motivate them for further LTC, which was defined as being assessed by a hepatologist, a blood test and an abdominal ultrasound. Results A total of 677 people from different ethnicities (Asian, Middle Eastern and African) were serologically screened using POCT. The observed positivity for HBsAg was 3.4 % (95% CI 2.17-5.05, 23/677). Apart from ethnicity and male sex, none of the surveyed HBV risk factors were associated with HBsAg seropositivity. All HBsAg positive individuals were linked to care and assessed by a hepatologist, despite the COVID-19 pandemic increase in time to follow-up of 82 days (95% CI 51-112 days) vs. 24 days (95% CI 5-43 days, p = 0.008)).Among HBV-infected patients, 31.8% (7/22), 100 % (22/22) and 26.1% (6/23) met the criteria for treatment indication, intrafamilial transmission risk and need for hepatocellular carcinoma surveillance, respectively. Conclusion The proportion of HBsAg seropositivity in ethnic minorities was 3.4%. POCT and commitment of dedicated personnel can overcome previously identified barriers resulting in a 100% LTC.
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Affiliation(s)
- Erwin Ho
- University of Antwerp, Viral Hepatitis Research Group, Laboratory of Experimental Medicine and Paediatrics, Antwerpen, Belgium
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
| | - Axelle Vanderlinden
- University of Antwerp, Viral Hepatitis Research Group, Laboratory of Experimental Medicine and Paediatrics, Antwerpen, Belgium
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
| | - Liesbeth Govaerts
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
| | - Bo De Fooz
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
| | | | - Peter Michielsen
- University of Antwerp, Viral Hepatitis Research Group, Laboratory of Experimental Medicine and Paediatrics, Antwerpen, Belgium
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
| | - Thomas Vanwolleghem
- University of Antwerp, Viral Hepatitis Research Group, Laboratory of Experimental Medicine and Paediatrics, Antwerpen, Belgium
- Antwerp University Hospital, Department of Gastroenterology and Hepatology, Edegem, Belgium
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