Figure 2
Venn diagrams. a The prevalence of newly diagnosed DM by OGTT results (FPG ≥ 7.0 mmol/l and/or 2-hour value ≥ 11.1 mmol/l) (red circle) and by HbA1c value ≥ 6.5% (48 mmol/mol) (blue circle). The prevalence of diabetes mellitus was higher when using HbA1c criteria, and HbA1c classified 46% of the 33 patients with newly diagnosed diabetes mellitus in concordance with OGTT results. b The prevalence of intermediate hyperglycaemia by OGTT results (FPG 6.1 mmol/l – 7.0 mmol/l and/or 2-hour value 7.8 mmol/l – 11.1 mmol/l) (red circle) and by HbA1c value 5.7% - 6.4% (39-46 mmol/mol) (blue circle). The prevalence of intermediate hyperglycaemia was higher when using HbA1c criteria compared with OGTT results.