PICO is a format for asking clinical questions. It stands for:
P - Patient Population
I - Intervention of interest
C - Comparison intervention or status
O - Outcome
Reference: Melnyk, B. M., & Fineout-Overholt, E. (2005). Evidence-based practice in nursing & healthcare: A guide to best practice. Philadelphia: Lippincott Williams & Wilkins. p. 8
