Nauru vs Tonga: Prevalence of underweight among adults, BMI < 18.5 (Crude estimate)

Nauru
0.36
in 2022
Tonga
0.27
in 2022
Nauru rank
192nd
Tonga rank
193rd

Prevalence of underweight among adults, BMI < 18.5 (Crude estimate) over time

  • Nauru
  • Tonga
00.20.40.6199020062022

How they compare

Nauru currently reports 0.36 against 0.27 in Tonga, a difference of 0.09.

That makes Nauru's figure about 1.3 times Tonga's.

The two have swapped places 1 time across 33 shared years of data; in 1990 it was Tonga ahead.

Nauru ranks 192nd and Tonga ranks 193rd of 193 countries.

Across the 4 decades both report, Nauru averaged higher in 3 and Tonga in 1.

Head to head by decade

Decade Nauru Tonga Difference Ahead
1990s 0.365 0.44 0.075 Tonga
2000s 0.348 0.328 0.02 Nauru
2010s 0.345 0.274 0.071 Nauru
2020s 0.36 0.2633 0.0967 Nauru

Averages of every year both report within each decade.

Frequently asked questions

Which has higher prevalence of underweight among adults, bmi < 18.5, Nauru or Tonga?
Nauru, at 0.36 against 0.27 in Tonga as of 2022.
What is the difference in prevalence of underweight among adults, bmi < 18.5 between Nauru and Tonga?
0.09, with Nauru ahead.
How many years of comparable data are there for Nauru and Tonga?
33 years are reported by both, from 1990 to 2022.
How do Nauru and Tonga rank globally for prevalence of underweight among adults, bmi < 18.5?
Nauru ranks 192nd and Tonga ranks 193rd of 193 countries.
Where does this data come from?
UNICEF, published as Prevalence of underweight among adults, BMI < 18.5 (Crude estimate). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nauru vs Tonga: Prevalence of underweight among adults, BMI < 18.5. Statizoid, drawing on UNICEF. Retrieved 11 November 2026, from https://health.statizoid.com/compare/prevalence-of-underweight-among-adults-bmi-18-5-crude-estimate/naoero/tonga/

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About this data

Indicator
Prevalence of underweight among adults, BMI < 18.5 (Crude estimate)
Source
UNICEF
Licence
UNICEF Terms of Use (attribution required)
Coverage
349 places, 9,955 data points, 1990–2022
Last refreshed