Sensitivity, specificity, predictive values and classification by point-of-care (POC) glycated haemoglobin (HbA1c) testing for diagnosing diabetes and screening for participants (n=241) with diabetes or a high risk of developing diabetes
| Diagnosis* | Screening† | |
|---|---|---|
| Sensitivity (95% CI, %) | 73.7 (48.6 to 89.9) | 91.0 (81.8 to 96.0) |
| Specificity (95% CI, %) | 98.2 (95.1 to 99.4) | 76.7 (69.3 to 82.9) |
| Positive predictive value (%) | 77.8 | 65.1 |
| Negative predictive value (%) | 97.8 | 94.7 |
| Correctly classified (%) | 96.3 | 81.3 |
Bold typeface indicates the main criteria for selecting a cut point.
*Diagnosis based on laboratory HbA1c ≥6.5%, 48 mmol/mol using a POC cut point of 6.5%, 48 mmol/mol.
†Screening based on laboratory HbA1c ≥6.0%, 42 mmol/mol using a POC cut point of 5.7%, 39 mmol/mol.