Tonga · Diabetes Prevalence, Age 18+ (age-standardized, %)
23.4%2022
Unit: percent of adults aged 18 and over. Publisher measure: Prevalence of diabetes, age-standardized.
Age-standardized diabetes prevalence: FPG>=7 mmol/L or HbA1c>=6.5% or glucose-lowering medication; both sexes, age18+.
Measurement basis: model-based estimate.
Displayed values are rounded, with extra precision when needed to keep a positive estimate positive. Downloads retain the full numeric estimate and the publisher's original display text separately.
A “<” sign means strictly below the stated number. Numeric readings and uncertainty endpoints keep their own comparison signs. A number without a sign does not establish certainty or an observed outcome.
World Health Organization (Global Health Observatory); retrieved 2026-09-07. Retrieval time is separate from an official publisher release vintage.
Download this immutable source capture · Source and coverage corrections
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.
History and uncertainty
Charts plot numeric readings. Reported upper bounds create gaps; their values, uncertainty endpoints and source notes remain available in the table and downloads.
Reported estimates and uncertainty · 33 rows
Each comparison sign applies to its own reading or uncertainty endpoint. Values retain source precision. “Not reported” identifies an absent reading or uncertainty endpoint in this source capture.
| Country | Year | Reading | Lower endpoint | Upper endpoint | Publisher note |
|---|---|---|---|---|---|
| Tonga | 1990 | 15.70337 | 10.363391 | 21.938883 | — |
| Tonga | 1991 | 16.024731 | 10.88068 | 22.135323 | — |
| Tonga | 1992 | 16.350117 | 11.352407 | 22.27637 | — |
| Tonga | 1993 | 16.680628 | 11.739466 | 22.52945 | — |
| Tonga | 1994 | 17.016335 | 12.087541 | 22.725254 | — |
| Tonga | 1995 | 17.36064 | 12.503199 | 22.902593 | — |
| Tonga | 1996 | 17.716853 | 12.90811 | 23.180808 | — |
| Tonga | 1997 | 18.083659 | 13.341452 | 23.349597 | — |
| Tonga | 1998 | 18.456273 | 13.788038 | 23.598783 | — |
| Tonga | 1999 | 18.838988 | 14.218049 | 23.807621 | — |
| Tonga | 2000 | 19.226526 | 14.718749 | 24.079834 | — |
| Tonga | 2001 | 19.61439 | 15.191443 | 24.366739 | — |
| Tonga | 2002 | 19.993724 | 15.677121 | 24.613737 | — |
| Tonga | 2003 | 20.355535 | 16.185515 | 24.873441 | — |
| Tonga | 2004 | 20.704649 | 16.736683 | 25.017667 | — |
| Tonga | 2005 | 21.038193 | 17.150471 | 25.26966 | — |
| Tonga | 2006 | 21.352668 | 17.49907 | 25.513619 | — |
| Tonga | 2007 | 21.646255 | 17.836852 | 25.802028 | — |
| Tonga | 2008 | 21.911722 | 18.151668 | 25.993669 | — |
| Tonga | 2009 | 22.141626 | 18.405953 | 26.227647 | — |
| Tonga | 2010 | 22.325319 | 18.579321 | 26.519582 | — |
| Tonga | 2011 | 22.470365 | 18.462209 | 26.815167 | — |
| Tonga | 2012 | 22.576295 | 18.401577 | 27.176949 | — |
| Tonga | 2013 | 22.651516 | 18.210801 | 27.65505 | — |
| Tonga | 2014 | 22.710049 | 17.891754 | 28.260314 | — |
| Tonga | 2015 | 22.757626 | 17.476989 | 28.937748 | — |
| Tonga | 2016 | 22.810329 | 16.976792 | 29.511446 | — |
| Tonga | 2017 | 22.872074 | 16.486409 | 30.345675 | — |
| Tonga | 2018 | 22.945066 | 15.914482 | 31.314844 | — |
| Tonga | 2019 | 23.034377 | 15.464225 | 32.248589 | — |
| Tonga | 2020 | 23.1364 | 15.006854 | 33.405361 | — |
| Tonga | 2021 | 23.26569 | 14.377445 | 34.355566 | — |
| Tonga | 2022 | 23.417902 | 13.809279 | 35.510436 | — |
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.