Prevalence of viral hepatitis in sub-Saharan Africa among the general population: an umbrella review of systematic reviews and meta-analyses.

OBJECTIVES

Hepatic impairment, especially hepatitis, is a growing public health concern in the general population globally. Viral hepatitis, a key driver of liver impairment, remains endemic in many countries across sub-Saharan Africa (SSA). We conducted an umbrella review to assess the prevalence of viral hepatitis among the general population in SSA.

DESIGN

We conducted an umbrella review, using standardised methods to assess multiple systematic reviews and meta-analyses (SRMAs) on the prevalence of viral hepatitis.

DATA SOURCES

We systematically searched PubMed and Embase to retrieve systematic reviews published from 2013-2024.

ELIGIBILITY CRITERIA FOR SELECTING STUDIES

We retrieved systematic reviews published during 2013-2024 that examined the prevalence of viral hepatitis among the general population within SSA.

DATA EXTRACTION AND SYNTHESIS

Two independent reviewers used standardised methods to search, screen and identify included studies. We conducted an umbrella review, which was a comprehensive and systematic collation and assessment of SRMAs focused on the prevalence of viral hepatitis in SSA.

RESULTS

The final analysis included 21 studies. Among these, one study focused on hepatitis A, 13 on hepatitis B, 10 on hepatitis C, 2 on hepatitis D and 1 on hepatitis E. Only one study reported the overall prevalence of hepatitis A and E in SSA as 90 200 and 46 860 per 100 000 population, respectively. Across SSA, hepatitis B exhibited a pooled prevalence ranging from 6000 to 18 900, while hepatitis C ranged from 720 to 7820 and hepatitis D from 50 to 28 990 per 100 000 population. Heterogeneity was high and ranged from I=63.14% to 99%.

CONCLUSION

We present an umbrella review on viral hepatitis prevalence in SSA, providing an overall view of study quality, effect sizes, heterogeneity and bias across the search field. We found that the prevalence of viral hepatitis in many SSA countries is higher than the global estimate. However, these results are mainly based on seropositivity tests; nonetheless, the findings from this study provide an overarching picture of the burden of viral hepatitis within populations in SSA.