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Table 1 Sensitivity and specificity rates applied to the state transition models

From: Cost-effectiveness analysis for HbA1c test intervals to screen patients with type 2 diabetes based on risk stratification

Age group BMI group Interval HbA1c sensitivity (%) HbA1c specificity (%)
30–44 Underweight (< 18.5 kg/m2) Annual 0.0 100.0
3 years 50.0 100.0
10 years 81.8 99.9
Normal (18.5–25 kg/m2) Annual 0.0 100.0
3 years 47.5 99.9
6 years 68.1 99.9
Overweight (25–30 kg/m2) Annual 0.0 100.0
3 years 54.5 99.7
4 years 57.8 99.6
Obese (< 30 kg/m2) Annual 0.0 100.0
2 years 37.5 99.1
3 years 62.2 98.6
45–59 Underweight (< 18.5 kg/m2) Annual 0.0 100.0
3 years 66.7 99.8
10 years 70.0 99.7
Normal (18.5–25 kg/m2) Annual 0.0 100.0
3 years 56.0 99.7
6 years 73.5 99.5
Overweight (25–30 kg/m2) Annual 2.5 100.0
3 years 61.1 99.1
4 years 66.8 99.0
Obese (< 30 kg/m2) Annual 0.0 100.0
3 years 62.0 98.0
4 years 71.4 98.0
60–74 Underweight (< 18.5 kg/m2) Annual 0.0 100.0
3 years 50.0 99.5
6 years 87.5 99.3
Normal (18.5–25 kg/m2) Annual 0.0 100.0
3 years 50.3 99.3
7 years 72.7 99.1
Overweight (25–30 kg/m2) Annual 0.0 100.0
3 years 52.3 99.1
5 years 64.5 98.7
Obese (< 30 kg/m2) Annual 0.0 100.0
3 years 60.0 97.5
4 years 70.0 97.5