Table 2.
Age-adjusted* prevalence of IGT and IFG in adults aged 20–79 years globally and by World Bank income classification
| Condition and World Bank income classification | 2021 | 2045 (projected) | ||
|---|---|---|---|---|
| Prevalence, % | No. of people with condition, millions | Prevalence, % | No. of people with condition, millions | |
| IGT | ||||
| High | 11.2 (9.5, 12.7) | 105 (89, 119) | 12.0 (10.1, 13.5) | 113 (96, 128) |
| Middle | 8.5 (7.6, 10.2) | 327 (292, 391) | 9.4 (8.4, 11.1) | 450 (402, 529) |
| Low | 9.5 (6.6, 12.1) | 33 (23, 41) | 10.9 (7.3, 13.7) | 75 (50, 95) |
| IFG | ||||
| High | 6.4 (5.6, 7.2) | 60 (53, 68) | 6.7 (5.9, 7.7) | 63 (56, 73) |
| Middle | 5.8 (5.4, 6.2) | 221 (206, 237) | 6.6 (6.1, 7.1) | 312 (290, 337) |
| Low | 5.0 (4.7, 5.5) | 17 (16, 19) | 5.6 (5.2, 6.1) | 38 (36, 42) |
CI are reported in parentheses. IGT was defined as 2-h postload glucose levels of 7.8–11.1 mmol/L (140–199 mg/dL). IFG was defined as fasting plasma glucose levels of 6.1–6.9 mmol/L (110–125 mg/dL).
*
Age adjustment was based on United Nations age distribution data for each country.