Table 3. Change in systolic BP by arm of study.
| Systolic BP | n | Mean (mm Hg) | s.d. (mm Hg) | s.e.m. (mm Hg) |
|---|---|---|---|---|
| ABE | ||||
| Before | 9333 | 138.98 | 17.73 | 0.18 |
| After | 134.06 | 16.21 | 0.17 | |
| Change | 4.91 | 19.96 | 0.21 | |
| G&P | ||||
| Before | 6871 | 139.05 | 18.81 | 0.23 |
| After | 134.85 | 16.54 | 0.20 | |
| Change | 4.20 | 20.61 | 0.25 | |
| UP | ||||
| Before | 7107 | 139.37 | 18.20 | 0.22 |
| After | 135.66 | 16.42 | 0.19 | |
| Change | 3.71 | 19.81 | 0.24 | |
| Total | ||||
| Before | 23,311 | 139.12 | 18.20 | 0.12 |
| After | 134.78 | 16.38 | 0.11 | |
| Change | 4.33 | 20.12 | 0.13 | |
Abbreviations: ABE, audit-based education; BP, blood pressure; G&P, guidelines and prompts; UP, usual practice.