Characteristics of the included randomised controlled trial
| Study name and funding | Study design | Participants, setting | Exposure | Control | Outcomes | Notes |
|---|---|---|---|---|---|---|
| Freemantle et al,13 2000, funding by Warwickshire health authority | Randomised controlled trial | All 79 cardiovascular practices in Warwickshire participated in the trial | 40 practices which received, in addition to what the control group received: a letter from the chief executive of the health authoritypostgraduate educational allowance accreditationa letter from the pharmaceutical advisor | 39 practices which received: practice guidelines routine marketing activities routine health authority advice | Proportion of prescriptions in line with the guidelines (behaviour)prescribing costs | Time frame: October 1997–April 1998 |