Table 6—

Criteria for testing for diabetes in asymptomatic, undiagnosed individuals

1. Testing for diabetes should be considered in all individuals at age 45 years and above and, if normal, it should be repeated at 3-year intervals.
2. Testing should be considered at a younger age or be carried out more frequently in individuals who:
 • are overweight (BMI ≥25 kg/m2)
 • have a first-degree relative with diabetes
 • are members of a high-risk ethnic population (e.g., African-American, Hispanic Ameri-can, Native American, Asian American, Pacific Islander)
 • have delivered a baby weighing >9 lb or have been diagnosed with GDM
 • are hypertensive (≥140/90)
 • have an HDL cholesterol level ≤35 mg/dl (0.90 mmol/l) and/or a triglyceride level ≥250 mg/dl (2.82 mmol/l).
 • on previous testing, had IGT or IFG
  • The OGTT or FPG test may be used to diagnose diabetes; however, in clinical settings the FPG test is greatly preferred because of ease of administration, convenience, acceptability to patients, and lower cost.