| Glucose Level | Reference Diagnostic Test—Glucose Tolerance Test: Cutpoints in Milligrams per Deciliter (mg/dl) | Screening | ||
|---|---|---|---|---|
| National Diabetes Data Group65 a 100 g |
American Diabetes Association66 a 100 g |
World Health Organization64 b 75 g |
Glucose Challenge Test 50 g |
|
| Fasting | 105 | 95 | > 126 | -- |
| 1 hour | 190 | 180 | -- | 130 or 140 |
| 2 hours | 165 | 155 | > 140 | -- |
| 3 hours | 145 | 140 | -- | -- |
a Two or more criteria must be met or exceeded for a positive diagnosis.
b One or more criteria must be met or exceeded for a positive diagnosis.
Note: Double dash (--) indicates glucose levels not used for the test indicated.