Screening for pre-diabetes to predict future diabetes using various cut-off points for HbA1c and impaired fasting glucose

The combination of HbA1c 39–46 mmol/mol (5.7–6.4%) and fasting plasma glucose 5.6–6.9 mmol/l would have the best performance in reducing the likelihood of missing future cases of diabetes. Identifying pre-diabetic individuals who strictly fulfil HbA1c 42–46 mmol/mol (6.0–6.4%) and fasting plasma glucose 6.1–6.9 mmol/l would predict definite progression to diabetes (Diabetic Medicine)