Tuberculosis treatment success rate in Tonga

Tonga: Tuberculosis treatment success rate was 100.0% in 2022. ▲ Rising

Latest (2022)
100.0%
Change on year
unchanged
World rank
1st
of 206 countries
All-time high
100.0%
in 2006
All-time low
74.0%
in 2005
Years of data
27
1994–2022

Tuberculosis treatment success rate in Tonga, 1994–2022

0204060801001994200820221994: 89 %1995: 75 %1996: 82 %1997: 75 %1998: 94 %1999: 80 %2000: 93 %2001: 92 %2002: 83 %2005: 74 %2006: 100 %2007: 96 %2008: 92 %2009: 88 %2010: 90 %2011: 100 %2012: 100 %2013: 90 %2014: 100 %2015: 93 %2016: 100 %2017: 82 %2018: 100 %2019: 100 %2020: 88 %2021: 100 %2022: 100 %

Source: WHO (2025) – with minor processing by Our World in Data. Measured in %.

Analysis

Tonga recorded 100.0% for tuberculosis treatment success rate in 2022. That is the highest value across all 27 years on record.

Compared with earlier readings it is unchanged over ten years.

Over the whole period, tuberculosis treatment success rate in Tonga peaked at 100.0% in 2006 and was at its lowest, 74.0%, in 2005.

Tonga ranks 1st of 206 countries on this measure, in the top 10%.

The long-run direction has been consistently rising across the 27 years of available data.

Tuberculosis treatment success rate in Tonga, year by year

Annual values for Tuberculosis treatment success rate in Tonga, 1994 to 2022.
Year % Change
1994 89.0%
1995 75.0% -15.7%
1996 82.0% +9.3%
1997 75.0% -8.5%
1998 94.0% +25.3%
1999 80.0% -14.9%
2000 93.0% +16.2%
2001 92.0% -1.1%
2002 83.0% -9.8%
2005 74.0% -10.8%
2006 100.0% +35.1%
2007 96.0% -4.0%
2008 92.0% -4.2%
2009 88.0% -4.3%
2010 90.0% +2.3%
2011 100.0% +11.1%
2012 100.0% +0.0%
2013 90.0% -10.0%
2014 100.0% +11.1%
2015 93.0% -7.0%
2016 100.0% +7.5%
2017 82.0% -18.0%
2018 100.0% +22.0%
2019 100.0% +0.0%
2020 88.0% -12.0%
2021 100.0% +13.6%
2022 100.0% +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1990s 82.5% 75.0% 94.0% 6
2000s 89.8% 74.0% 100.0% 8
2010s 95.5% 82.0% 100.0% 10
2020s 96.0% 88.0% 100.0% 3

Countries ranked near Tonga

  1. 1 American Samoa 100.0% compare
  2. 1 Andorra 100.0% compare
  3. 1 Barbados 100.0% compare
  4. 1 Bermuda 100.0% compare
  5. 1 British Virgin Islands 100.0% compare
  6. 1 Cayman Islands 100.0% compare
  7. 1 Cook Islands 100.0% compare
  8. 1 Palestine 100.0% compare
  9. 1 Saint Kitts and Nevis 100.0% compare
  10. 1 Samoa 100.0% compare
  11. 1 Sint Maarten (Dutch part) 100.0% compare
  12. 1 Turks and Caicos Islands 100.0% compare

See the full ranking of 206 places →

More health data for Tonga

All data for Tonga →

Frequently asked questions

What is tuberculosis treatment success rate in Tonga?
Tuberculosis treatment success rate in Tonga was 100.0% in 2022, according to WHO (2025) – with minor processing by Our World in Data.
What is the highest tuberculosis treatment success rate recorded in Tonga?
The highest recorded value was 100.0% in 2006.
What is the lowest tuberculosis treatment success rate recorded in Tonga?
The lowest recorded value was 74.0% in 2005.
How does Tonga rank for tuberculosis treatment success rate?
Tonga ranks 1st out of 206 countries with data for 2022.
Is tuberculosis treatment success rate rising or falling in Tonga?
Over the last ten years it is unchanged. The long-run trend across the full record is rising.
Where does this Tonga data come from?
The figures come from WHO (2025) – with minor processing by Our World in Data, published as part of Tuberculosis treatment success rate. Statizoid updates them automatically from the source API.

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Tuberculosis treatment success rate in Tonga. Statizoid, drawing on WHO (2025) – with minor processing by Our World in Data. Retrieved 29 August 2026, from https://health.statizoid.com/stat/tuberculosis-treatment-success-rate-in-new-and-relapsed-cases/tonga/

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About this data

Indicator
Tuberculosis treatment success rate
Unit
%
Source
WHO (2025) – with minor processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
206 places, 5,271 data points, 1994–2023
Last refreshed

Treatment success rate among new and relapse cases.