Epidemiology and Informed Consent

This chapter focuses on informed consent, which is a central concept and practice in the protection of the rights and interests of both patients receiving clinical care and individuals participating in research. It addresses the commitment to the ethical principles underlying informed consent that dates back to the early twentieth century, as reflected in many countries' laws governing the physician–patient relationship. It also recounts how informed consent was codified into national policies and international guidelines and standards for research on human subjects. The chapter explores the parallel origins of informed consent and its applications, which are based on distinctions between clinical practice and research and do not naturally apply to or readily translate to epidemiology. It outlines the requirements for consent that have been and are treated differently in epidemiology depending on the type of activity and sometimes the practicability of seeking consent from participants.