Chad vs Guinea-Bissau: Hepatitis B surface antigen (HBsAg) prevalence

Chad
2.2%
in 2024
Guinea-Bissau
2.7%
in 2024
Chad rank
11th
Guinea-Bissau rank
8th

Hepatitis B surface antigen (HBsAg) prevalence over time

  • Chad
  • Guinea-Bissau
0246201520192024

How they compare

Guinea-Bissau currently reports 2.7% against 2.2% in Chad, a difference of 0.5%.

That makes Guinea-Bissau's figure about 1.2 times Chad's.

The two have swapped places 1 time across 10 shared years of data; in 2015 it was Chad ahead.

Chad ranks 11th and Guinea-Bissau ranks 8th of 194 countries.

Chad has averaged higher in every one of the 2 decades both report.

Head to head by decade

Decade Chad Guinea-Bissau Difference Ahead
2010s 4.1% 2.8% 1.3% Chad
2020s 3.0% 2.7% 0.3% Chad

Averages of every year both report within each decade.

Frequently asked questions

Which has higher hepatitis b surface antigen (hbsag) prevalence, Chad or Guinea-Bissau?
Guinea-Bissau, at 2.7% against 2.2% in Chad as of 2024.
What is the difference in hepatitis b surface antigen (hbsag) prevalence between Chad and Guinea-Bissau?
0.5%, with Guinea-Bissau ahead.
How many years of comparable data are there for Chad and Guinea-Bissau?
10 years are reported by both, from 2015 to 2024.
How do Chad and Guinea-Bissau rank globally for hepatitis b surface antigen (hbsag) prevalence?
Chad ranks 11th and Guinea-Bissau ranks 8th of 194 countries.
Where does this data come from?
World Health Organization, Global Health Observatory, published as Hepatitis B surface antigen (HBsAg) prevalence (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Guinea-Bissau: Hepatitis B surface antigen (HBsAg) prevalence. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 01 September 2026, from https://health.statizoid.com/compare/hepatitis-b-surface-antigen-hbsag-prevalence-percent/chad/guinea-bissau/

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About this data

Indicator
Hepatitis B surface antigen (HBsAg) prevalence (%)
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
209 places, 2,090 data points, 2015–2024
Last refreshed