Healthcare professionals sometimes use the PICO or PICOT format to develop keywords for searching of clinical questions where:
P - Patient or Population or Problem
I - Intervention or prognostic factor of interest
C - Comparison to intervention
O - Outcome of interest
T - Time (sometimes included)
For more information about forming and using a PICO question to search, please see the American Journal of Nursing article below.
Stillwell, S. B., Fineout-Overholt, E., Melnyk, B. M., & Williamson, K. M. (2010). Evidence-based practice, step by step: Asking the clinical question: A key step in evidence-based practice. American Journal of Nursing, 110(3): 58-61.
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