The DUE protocol was prepared in November 1999 and submitted to the Ottawa Hospital Research Ethics Board for review and approval. Data collection was conducted in January and February 2000 by a registered nurse specially trained for that purpose.
Antibiotic prescribing information was collected retrospectively. A convenient sample size of 150 to 175 oral antibiotic prescriptions was targetted for each of the two prescribing groups (ie, physicians and physician assistants) at each site. This sample size was determined based on the anticipated volume of prescriptions written over the course of the observation period. All oral antibiotic prescriptions written were assessed until the target number of prescriptions was attained. This DUE was initially conducted on the east coast (Halifax) and then repeated on the west coast (Esquimalt). levitra super active plus
Identification of the antibiotic prescriptions was done by reviewing prescriptions of military personnel who had recently visited a treatment centre. Treatment centres for the purpose of this project were defined as the sick bay on a ship or the medical clinic building on the base. Following the identification of the antibiotic prescription, the study nurse was responsible for completing the data collection form (Appendix 1). Information was collected from the patients’ medical records. Patient consent was not required because this was a noninterventional study that was limited to qualitatively evaluating routine practice. All data were kept confidential.