Seventy six of the enrolled practices were from the original group of 160 practices targeted for enrolment, and the remaining 45 were from the open enrollment period.
A secondary outcome measure was defined as the proportion of enrolled practices that provided 20 or more preventive dental visits during the first 12 months following each practice's enrolment.
However, after the first six months of enrolment, it became necessary to open enrolment to all private pediatric and family physician practices, regardless of practice volume, in order to achieve the goal of 120 enrolled practices.
This highlights another area for further research to identify how fracture sub-groups progress with IMN, hence identifying those that could be still managed non-operatively, reducing costs and thus making enrolment into practice more achievable.
Under-enrolment or selective enrolment of general practice patients [ 17- 21] can make generalisation of study results inappropriate [ 22, 23].
As stated above, the design of our registry as well as the risk of selection bias during patient enrolment in the practice of the attending physicians would have limited a direct comparison with a VKA group significantly.
Behaviours that were recruitment criteria for cohort enrolment, including anal sex practice, anal receptive role-taking, and having received cash for sex in the last 3 months, were reported significantly less frequently in ACASI than in FtF interviews with men.
Rates were computed for the first 12 months following each practice's enrolment and for the period through June, 2003.
In total, 31% of the target enrolment (200 patients per practice = 5,000 patients) was achieved (range 2%too 101%).
During their enrolment in physician's practice (index visit), all patients consulting for shoulder disorders received a self-administered questionnaire.
