During this course, students will have hands-on experience in constructing and analyzing a decision analysis tree – including Markov models and one-way, two-way, and probabilistic sensitivity analysis – using TreeAge Pro software. Instructors will provide a series of short lecture-based sessions followed by the opportunity for participants to engage in model-building exercises using the software. Sessions will demonstrate how to build a simple decision tree, extend a decision model to incorporate costs and utilities, and replace terminal nodes with state-transition (Markov) models to represent time-varying events. Other more advanced topics will be covered if time permits. Participants should have a basic understanding of decision analysis. Participants are required to bring their personal laptops equipped with software provided to course registrants.