Fig. 2

Clinical decision making flow chart. This flow chart provides a simple outline of the method which will be employed to perform an intial assessment at follow-up of whether medication harm has occurred based on patient interview, hospital re-admission and General Practice records. This will be followed by a final assessment of potential medication harm events, classified by likelihood, cause, severity and preventability of the event. The binary outcome of this assessment to determine the occurrence (or not) of medication harm will inform the logistic regression and risk prediction model development. The model will be internally validated and its ability to predict medicaiton harm will be compared to the ability of discharging clinicians to predict medication harm at the point of hospital discharge