Compared to evidence-based public health, evidence-based medicine is a more familiar phrase. Evidence-based medicine has become increasingly popular in the past decade, due in large part to the emergence of computerized database search technology and advanced statistical tools which allow researchers to quickly identify and summarize vast amounts of scientific information.

Today, the concept of evidence-based public health is gaining momentum and has grown in popularity. However, the term “evidence-based” lacks clarification and is subject to a variety of interpretations. The evidence that supports evidence-based medicine or public health may include individual experience, anecdotal information, the content of a single scientific article, or the results of a sophisticated systematic review of scientific literature. The imprecise language used to describe evidence leads to confusion over what types of evidence are most appropriate in answering different types of questions.