The first step in your evidence-based research plan is to write a PICO question. PICO is a framework for formulating clinical questions in a researchable way. The letters stand for:
| P | Population - Individual or group that you are researching |
| I | Intervention - what is the action (intervention/treatment) that you are considering taking? |
| C | Comparison - what other action (intervention, treatment) are you comparing to the action? |
| O | Outcome - what do you anticipate as the outcome? |
Take a look at the example on this page to see how to translate a PICO question into database search terms, then try your search terms in the different evidence-based search tools.
How do you translate a PICO question into a database search? Let's look at an example:
For individuals with a family history of cancer what effect does the timing of routine cancer screening examinations have on early diagnosis of cancer compared with individuals who do not have an identified family history of cancer?
Population: Individuals with a family history of cancer.
Intervention: Scheduling of routine cancer screening exams.
Comparison: None
Outcome: Early detection of cancer
It's important to pick out the key words from your PICO outline and use those in your search.
How you enter these words in the search box(es) will depend on the database. Trip has an easy PICO search where you can enter your P,I,C, and O in separate search boxes, and you can do something similar in CINAHL+MEDLINE's advanced search. In PubMed, it's best to enter all your terms on the same line.
