PICO TUTORIAL 

PICO is a common mnemonic in Health Care research to help researchers form a clinically answerable question:

P - Patient, population or "problem" 

I - Intervention

C - Comparison (if no comparison, C can stand for "control"

O - Outcome

You will sometimes see variations on this:

• PICOTT:  Type of Question (therapy/intervention/diagnosis etc) and Type of Study
• PICOT: Timeframe
• PICOS: Study design 

Adapted from: Melnyk, B. M., & Fineout-Overholt, E. (2011). Evidence-based practice in nursing & healthcare: A guide to best practice. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins.

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