1. A patient monitoring system comprising: a patient monitor device which collects physiological data from a patient; a control processor configured to: receive the collected physiological data from the patient monitor device, receive laboratory data about the patient from a laboratory, determine a time of stay indicative of a time the patient has been in a healthcare facility, predict an outcome variable continuously in real time by applying an outcome variable estimation algorithm to the patient's physiological and laboratory data using the determined time of stay.