Abstract: Disclosed is a medical advisory system for providing recommendations to a user for actions to be taken. The system comprises input means for receiving a number of input parameters, processing means configured to determine from at least the input parameters a recommended action to be taken, and output means for presenting information about the determined recommended action to a user. The processing means is configured to implement a plurality of mathematical advisory models each adapted to generate a respective model output from the received input parameters. The processing means is configured to determine the recommended action from the model output of one or more of the plurality of mathematical advisory models.