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Prevalence of IGT (A) and IFG (B) in adults aged 20–79 years in 2021 and 2045 by age group. IGT was defined as 2-h postload glucose levels of 7.8–11.1 mmol/L (140–99 mg/dL). IFG was defined as fasting plasma glucose levels of 6.1–.9 mmol/L (110–125 mg/dL).
