Table 1 Mean payment quality and delivered quality for 33 clinical indicators.
| Disease area | Indicator definition | Payment range (%) | No of practices | Mean payment quality (%) | Mean delivered quality (%) | Difference between means p<t |
|---|---|---|---|---|---|---|
| CHD | Record of smoking status in the previous 15 months | 25–90 | 1020 | 95.0 | 95.0 | 0.96 |
| Stroke | Record of smoking status in the previous 15 months | 25–90 | 1020 | 93.3 | 93.0 | <0.001 |
| Hypertension | Record of smoking status since diagnosis | 25–90 | 1021 | 95.0 | 94.6 | <0.001 |
| Diabetes | Record of smoking status in the previous 15 months | 25–90 | 1020 | 97.1 | 97.0 | <0.001 |
| COPD | Record of smoking status in the previous 15 months | 25–90 | 1019 | 94.4 | 94.7 | 0.01 |
| CHD | Record of blood pressure in previous 15 months | 25–90 | 1020 | 95.0 | 94.7 | 0.39 |
| Stroke | Record of blood pressure in previous 15 months | 25–90 | 1020 | 94.0 | 93.5 | <0.001 |
| Hypertension | Record of blood pressure in previous 9 months | 25–90 | 1021 | 88.7 | 88.4 | <0.001 |
| Diabetes | Record of blood pressure in the previous 15 months | 25–90 | 1020 | 97.6 | 97.3 | <0.001 |
| CHD | Record of total cholesterol in previous 15 months | 25–90 | 1020 | 88.0 | 86.0 | <0.001 |
| Stroke | Record of total cholesterol in previous 15 months | 25–90 | 1020 | 83.8 | 80.3 | <0.001 |
| Diabetes | Record of total cholesterol in previous 15 months | 25–90 | 1020 | 94.4 | 92.9 | <0.001 |
| Diabetes | Record of retinal screening in the previous 15 months | 25–90 | 1020 | 86.4 | 78.6 | <0.001 |
| Diabetes | Record of peripheral pulse test in the previous 15 months | 25–90 | 1020 | 84.8 | 80.0 | <0.001 |
| Diabetes | Record of neuropathy testing in the previous 15 months | 25–90 | 1020 | 83.1 | 78.2 | <0.001 |
| Diabetes | Record of serum creatinine testing in the previous 15 months | 25–90 | 1020 | 94.5 | 92.9 | <0.001 |
| COPD | Diagnosis confirmed by spirometry | 25–90 | 1019 | 74.8 | 63.6 | <0.001 |
| COPD | Record of FEV1 in previous 27 months | 25–70 | 1019 | 69.7 | 57.2 | <0.001 |
| Outcome | ||||||
| CHD | Blood pressure recorded in previous 15 months ⩽150/90 | 25–70 | 1020 | 84.9 | 82.8 | <0.001 |
| Stroke | Blood pressure recorded in previous 15 months ⩽150/90 | 25–70 | 1020 | 82.7 | 79.3 | <0.001 |
| Hypertension | Blood pressure recorded in previous 15 months ⩽150/90 | 25–70 | 1021 | 72.3 | 69.3 | <0.001 |
| Diabetes | Blood pressure recorded in previous 15 months ⩽145/85 | 25–55 | 1020 | 75.0 | 70.0 | <0.001 |
| CHD | Total cholesterol recorded in previous 15 months ⩽5 mmol/l | 25–60 | 1020 | 69.3 | 63.7 | <0.001 |
| Stroke | Total cholesterol recorded in previous 15 months ⩽5 mmol/l | 25–60 | 1020 | 63.3 | 55.8 | <0.001 |
| Diabetes | Total cholesterol recorded in previous 15 months ⩽5 mmol/l | 25–60 | 1020 | 74.2 | 67.1 | <0.001 |
| Diabetes | HbA1c recorded in previous 15 months ⩽7.4% | 25–55 | 1020 | 56.9 | 49.9 | <0.001 |
| Diabetes | HbA1c recorded in previous 15 months ⩽10% | 25–85 | 1020 | 89.9 | 85.6 | <0.001 |
| Treatment | ||||||
| CHD | Aspirin, alternative antiplatelet or anticoagulant being taken | 25–90 | 1020 | 89.5 | 87.6 | <0.001 |
| CHD | Treated with β‐blocker | 25–50 | 1020 | 70.0 | 52.9 | <0.001 |
| CHD | Record of influenza immunisation in previous flu season | 25–85 | 1020 | 86.6 | 75.8 | <0.001 |
| Stroke | Record of influenza immunisation in previous flu season | 25–85 | 1020 | 83.7 | 71.6 | <0.001 |
| Diabetes | Record of influenza immunisation in previous flu season | 25–85 | 1020 | 86.7 | 73.4 | <0.001 |
CHD, coronary heart disease; COPD, chronic obstructive pulmonary disease; HbA1c, glycosylated haemoglobin; FEV1, forced expiratory volume in 1 s.