Many patients like having a say in their medical care. But according to a new survey, the people who say they want to take a relatively aggressive, hands-on approach may also wind up with longer hospital stays and higher bills than their peers who leave the decision making up to their doctors. A team of researchers from the University of Chicago School of Medicine reported on the survey's findings Monday in the journal JAMA Internal Medicine. In the background section of their report, the team noted that shared decision making has been widely endorsed as a model for making complex medical decisions and may have many advantages, including improved patient satisfaction and health outcomes.