Table 5: Sensitivity and specificity of fasting plasma glucose to diagnose Type 2 diabetes (US population aged 40 – 69 years)
|
|
Sensitivity (%) |
Specificity |
Positive Predictive Value |
|
2h post glucose challenge |
|
|
|
|
>200 mg/dL (>11.1 mmol/L)* |
97 |
100 |
100 |
|
Fasting Plasma Glucose |
|
|
|
|
>100 mg/dL (>5.5 mmol/L) |
83 |
76 |
21 |
|
>120 mg/dL (6.6 mmol/L) |
54 |
98 |
76 |
|
>140 mg/dL (7.7 mmol/L) |
31 |
100 |
100 |
*1mM = 18 mg/dL Adapted from Harris MI. Diabetes Care 1993; 16: 642-652