Hepatitis B surface antigen (HBsAg) prevalence (%) in Samoa
Samoa: Hepatitis B surface antigen (HBsAg) prevalence was 0.4% in 2024. ▲ Rising
Latest (2024)
0.4%
Change on year
down 33.3%
World rank
62nd
of 194 countries
All-time high
0.6%
in 2021
All-time low
0.3%
in 2016
Years of data
10
2015–2024
Hepatitis B surface antigen (HBsAg) prevalence in Samoa, 2015–2024
Source: World Health Organization, Global Health Observatory.
Analysis
In 2024, hepatitis b surface antigen (hbsag) prevalence in Samoa stood at 0.4%.
That represents a change of down 33.3% on the previous year and unchanged over ten years.
Over the whole period, hepatitis b surface antigen (hbsag) prevalence in Samoa peaked at 0.6% in 2021 and was at its lowest, 0.3%, in 2016.
Samoa ranks 62nd of 194 countries on this measure, in the middle of the range.
Hepatitis B surface antigen (HBsAg) prevalence in Samoa, year by year
| Year | Value | Change |
|---|---|---|
| 2015 | 0.4% | — |
| 2016 | 0.3% | -25.0% |
| 2017 | 0.3% | +0.0% |
| 2018 | 0.5% | +66.7% |
| 2019 | 0.5% | +0.0% |
| 2020 | 0.5% | +0.0% |
| 2021 | 0.6% | +20.0% |
| 2022 | 0.6% | +0.0% |
| 2023 | 0.6% | +0.0% |
| 2024 | 0.4% | -33.3% |
Samoa compared with similar countries
- Samoa's 0.4% is above the median for upper middle income countries, which is 0.2%, 2.0× the median. (57 countries reporting)
- Samoa's 0.4% is below the median for East Asia & Pacific, which is 0.6%, 67% of the median. (30 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 0.4% | 0.3% | 0.5% | 5 |
| 2020s | 0.5% | 0.4% | 0.6% | 5 |
Countries ranked near Samoa
More health data for Samoa
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 1.71 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 708.7 deaths per 1,000 people (2090)
- Number of infants who die before age 1 17 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 1 (2025)
- Population ages 00-04, female, annual growth rate -2.45 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0591 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.5 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is hepatitis b surface antigen (hbsag) prevalence in Samoa?
- Hepatitis b surface antigen (hbsag) prevalence in Samoa was 0.4% in 2024, according to World Health Organization, Global Health Observatory.
- What is the highest hepatitis b surface antigen (hbsag) prevalence recorded in Samoa?
- The highest recorded value was 0.6% in 2021.
- What is the lowest hepatitis b surface antigen (hbsag) prevalence recorded in Samoa?
- The lowest recorded value was 0.3% in 2016.
- How does Samoa rank for hepatitis b surface antigen (hbsag) prevalence?
- Samoa ranks 62nd out of 194 countries with data for 2024.
- Is hepatitis b surface antigen (hbsag) prevalence rising or falling in Samoa?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Samoa data come from?
- The figures come from World Health Organization, Global Health Observatory, published as part of Hepatitis B surface antigen (HBsAg) prevalence (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 10 observations, free to reuse under CC BY-NC-SA 3.0 IGO (WHO).