Detecting Prediabetes and Diabetes: Agreement between Fasting Plasma Glucose and Oral Glucose Tolerance Test in Thai Adults
Table 4
Sensitivity and specificity for detecting prediabetes and diabetes by FPG and OGTT stratified by selected factors.
Prediabetes by FPG
Prediabetes by OGTT
Diabetes by FPG
Diabetes by OGTT
()
()
()
()
Sensitivity (%)
Specificity (%)
Sensitivity (%)
Specificity (%)
Sensitivity (%)
Specificity (%)
Sensitivity (%)
Specificity (%)
All cases
53.7
100
81.1
100
45.4
100
93.0
100
Sex
Men
62.0
100
75.2
100
45.3
100
89.7
100
Women
51.2
100
82.8
100
45.4
100
94.3
100
Age group (yr)
20–<45
48.4
100
82.3
100
46.5
100
93.5
100
45–<60
54.4
100
79.8
100
44.1
100
92.8
100
≥60
60.9
100
83.6
100
50.5
100
93.8
100
Hypertension
Yes
54.5
100
81.8
100
36.7
100
96.2
100
No
53.5
100
80.8
100
48.9
100
91.7
100
Family history of diabetes
Yes
60.2
100
75.8
100
35.7
100
94.2
100
No
47.7
100
80.5
100
43.8
100
94.2
100
BMI (kg/m2)
<25
52.0
100
78.8
100
43.4
100
92.6
100
25–<30
53.2
100
81.9
100
43.4
100
93.1
100
≥30
56.7
100
83.6
100
45.9
100
94.6
100
Cut-off point for detecting prediabetes by FPG at 100 mg/dL and by OGTT at 140 mg/dL; cut-off point for detecting diabetes by FPG at 126 mg/dL and by OGTT at 200 mg/dL.
