Proportion of patients achieving target blood pressure based on four different methods and target levels of blood pressure defined by three different guideline groups.
| BHS audit standard (95% CI) | BHS optimum control (95% CI) | GMS (95% CI) | NICE (95% CI) | |||||
|---|---|---|---|---|---|---|---|---|
| Diabetes | Yes | No | Yes | No | Yes | No | Yes | No |
| Office blood pressure targets (mmHg) | <140/80 | <150/90 | <130/80 | <140/85 | <145/85 | <150/90 | <140/80 | <140/90 |
| Average blood pressure over 1year (n = 432) | 0/68 0% | 105/364 29% (23 to 35) | 0/68 0% | 37/364 10% (6 to 14) | 5/68 7% (1 to 13) | 135/364 37% (31 to 43) | 0/68 0% | 64/364 18% (14 to 22) |
| Last recorded blood pressure (n = 601) | 3/81 4% (0 to 8) | 167/520 32% (28 to 36) | 1/81 1% (0 to 3) | 58/520 11% (9 to 13) | 20/81 25% (15 to 35) | 253/520 49% (45 to 53) | 3/81 4% (0 to 8) | 167/520 32% (28 to 36) |
| Nurse blood pressure (n = 514) | 8/71 11% (3 to 19) | 152/443 34% (30 to 34) | 3/71 4% (0 to 8) | 68/443 15% (11 to 19) | 23/71 32% (20 to 44) | 174/443 39% (35 to 43) | 8/71 11% (3 to 19) | 117/443 26% (22 to 30) |
| Ambulatory blood pressure targets (BHS) (mmHg) | <140/80 | <140/85 | <130/75 | <130/80 | ||||
| Average daytime ambulatory blood pressure targets (n = 445) | 23/62 37% (23 to 51) | 215/383 56% (50 to 62) | 12/62 19% (9 to 29) | 120/383 31% (21 to 41) | ||||
BHS = British Hypertension Society. GMS = general medical services. NICE = National Institute for Health and Clinical Excellence.