Pilot study
In the planning phase of the study, a data collection form was developed using admission, hospitalization and hospital discharge variables extracted from similar studies found in the literature.7,26–28 Subsequently, the form was piloted, with a convenience analysis of 92 medical records of patients admitted in the second quarter of 2016, following the same eligibility criteria and in the same study location. Data were analyzed by two independent observers (L.M.C.S. and F.C.J.J.) under the supervision of a third researcher (C.C.S.). Then, the form was expanded to include more information regarding medication use at admission, hospitalization and discharge.