Abstract: A method and system for determining treatment preference information. Individuals are queried for data such as demographic information, preference factors, and tradeoff selections. The preference factors include, for example, relief from symptoms, cost of treatment, side effects of treatment, frequency of treatment required, and mode of administration of treatment. Using repositories of treatment related information, the preference factors are evaluated with regard to treatment options, then treatment preferences are refined via selection of tradeoff preferences. Treatment options are then ranked or otherwise compared, based on analyzed preference information.