Data collection
Before the actual data collection, data collectors were trained on how to collect the necessary data. A single-day training was given to the research staff on the research protocol. A pre-test was done, and three of the investigators carried out the data collection.
The study was approved by the ethics review committee of the school of pharmacy, University of Gondar. Informed consent was sought from the study participants prior to data collection and confidentiality and anonymity of subjects were maintained by not recording identifying details, such as name or any other personal identifiers.