The conscientious, explicit, and judicious development and use of current best evidence in making decisions about the care of individual patients.
The first stage of any evidence-based research is formulating an answerable question. A well-formulated question will facilitate the search for evidence and will assist you in determining whether the evidence is relevant to your question.
An answerable question has a format that follows the PICO concept. The acronym translates to:
|
Example: |
P (Problem or Patient or Population) | hospital acquired infection |
I (intervention/indicator) | hand washing |
C (comparison) | no hand washing; other solution; masks |
O (outcome of interest) | reduced infection |
PubMed Clinical Queries: Quick Searching for the Busy Clinician (7 minutes, 52 seconds) (Kelsey)
Evidence-based practice consists of five steps:
Source: Strauss, S. E. Evidence-Based Medicine: How to Practice and Teach EBM. New York: Churchill Livingstone, 2005.