Observed versus predicted probability for HbA1c measurement ever <75 mmol/mol
| Predicted probability | 0–0.4 | 0.4–0.6 | 0.6–1.0 | Total |
| Total patients | 2553 | 5665 | 41 708 | 49 926 |
| Number of patients with HbA1c<75 mmol/mol | 994 | 2870 | 32 899 | 36 763 |
| Per cent observed | 38.94% | 50.75% | 78.88% | 73.65% |
HbA1c, glycated haemoglobin.