One way of focusing your question is by using the PICO format (you may also see PICO(T) or PICOTT). PICO includes several factors that, when searched together, comprise a well-built clinical question. It includes:
You can clarify your intended results at the outset with additional, optional factors:
Take the following sample question:
In patients with chronic low back pain, is cognitive functional therapy more effective than manual therapy in reducing pain intensity and disability.
This example covers all elements of PICO, and provides us four distinct elements to convert into search terms:
To convert these PICO elements into a search, visualize each as its own category and identify potential synonyms for each. Think about other ways researchers might describe each concept and use the MeSH Thesaurus to identify parallel topics, separated with the Boolean Operator OR.
Patient/Population | Intervention | Comparison | Outcome |
---|---|---|---|
low back pain | cognitive functional therapy | manual therapy |
pain intensity |
OR | OR | OR | OR |
low back ache |
CFT |
Musculoskeletal Manipulations |
Pain Measurement OR Pain Assessment OR Pain Severity |