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Preference-sensitive treatment decisions involve making value trade-offs between benefits and harms that should depend on informed patient choice. There is strong evidence that patient decision aids not only improve decision quality but also prevent the overuse of options that informed patients do not value. This paper discusses progress in implementing decision aids and the policy prospects for reaching a "tipping point" in the adoption of "informed patient choice" as a standard of practice.

In law, with rare exception such as legislative action, change is evolutionary and methodical. Unlike biomedical science where a breakthrough can quickly lead to dramatic changes in medical practice, legal precedent is more adherent and must evolve either through the legislative process or on a court by court basis in case law. Nevertheless, compelling evidence will pave the road to change within the law. Health care research conducted over the last three decades has produced a body of empirical evidence that suggests an overhaul of our current legal standards of informed consent is overdue.This article uses health services research to examine the fundamental assumptions of our current informed consent laws and propose legal reform. Much has been written on how to bring the law to bear on medical practice in order to improve patient rights and protect physicians, but far less has been done to bring the practice of medicine to inform our legal standards. Prior legal scholarship on informed consent has made arguments regarding reform from both ethical and legal perspectives; however, only a small few have incorporated clinical and health services research as well as ethical and legal principles to analyze informed consent.