Trends in prevalence of type 2 diabetes and intermediate hyperglycaemia in Mauritius from 1987 to 2021 based on results from the oral glucose tolerance test: a repeated cross-sectional study
An erratum to this article was published (Lancet Diabetes Endocrinol, 15 Oct 2026 ↗)
Authors' conclusion
Mauritius is the first country to show a decreasing prevalence of type 2 diabetes and intermediate hyperglycaemia over time, using the objective, gold standard OGTT-based diagnostic criteria recommended by the WHO.
Study context
- Population
- General population adults aged 25–74 years in Mauritius; non-communicable disease risk factor surveys, participation >85% per survey
- Participants
- 36,744 survey attendances
- Exposure
- Survey years 1987–2021
- 1987n = 5,017reference
- 2009n = 5,833
- 2021n = 3,343
- Outcome
- Age and sex-standardised prevalence of T2D and intermediate hyperglycaemia (OGTT, WHO 2006 criteria)
Methodological detailspopulation-based surveys, standardised protocols, oral glucose tolerance test (OGTT)-based, WHO 2006 criteria
- Population-based surveys
- Standardised protocols
- OGTT-based
- WHO 2006 criteria
Main finding
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | Values |
|---|---|
| Age and sex-standardised prevalence of intermediate hyperglycaemia | 1987 20.8% (CI 19.6–21.9) · 2009 24.9% (CI 23.8–26.1) · 2021 15.6% (CI 14.3–16.9) |
| Proportion of T2D newly diagnosed | 1987 67.0% · 2021 32.5% |
- Age and sex-standardised prevalence of intermediate hyperglycaemia: 95% CI
Original publication
Trends in prevalence of type 2 diabetes and intermediate hyperglycaemia in Mauritius from 1987 to 2021 based on results from the oral glucose tolerance test: a repeated cross-sectional study. Lancet Diabetes Endocrinol. Published 30 September 2026. doi:10.
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