Measure American Diabetes Association World Health Organization
  Diabetes          Prediabetes                              Diabetes           Impaired          
glucose
Fasting plasma glucose ≥ 126 mg/dl    100-125
mg/dl(IFG)         
≥ 126 mg/dl      110-125
mg/dl     
(IFG)
2-Hr plasma glucose (during
An OGTT with a loading dose
Of 75 g
≥ 200 mg/dl    140-199    
Mg/dl   
(IGT)
≥ 200 mg/dl     140-199
mg/dl     
(IGT)
Casual(random ) plasma glucose
(In a patient with classic hyper
Glycemic symptom)
≥ 200 mg/dl ≥ 200 mg/dl
Glycated hemoglobin ≥ 6.5%           5.7-6.4% ≥ 6.5%               
Table 7: Major diagnostic criteria for diabetes and prediabetic or at-risk states. Data are adapted from the American Diabetes Association. Adapted from Salomaa and Diabetes Care [22,23].