WHO criteria for diagnosis of diabetes is -

WHO GUIDELINES FOR DIAGNOSIS OF DIABETES MELLITUS CUT-OFF (mmol/L) CUT-OFF (mg/dl) Diabetes Fasting plasma glucose >= 7mmol/L >=126mg/dL 2-hour plasma glucose >11.1 mmol/L >200mg/dL Impaired glucose tolerance Fasting plasma glucose <7 mmol/L <126 mg/dL 2-hour plasma glucose 7.8-11.1 mmol/L 140-200mg/dL Impaired fasting glucose Fasting plasma glucose 6.1-6.9 mmol/dL 110-125 mg/dL 2-hour plasma glucose <7.8 mmol/dL <140 mg/dL Ref: Park 25th edition Pgno : 414