In evidence-based practice, what does PICOT stand for?

• A. Population, Intervention, Comparison, Outcome, Time
• B. Problem, Intervention, Control, Outcome, Trend
• C. People, Intervention, Comparison, Outcome, Time
• D. Population, Intervention, Comparison, Outcome, Treatment

Answer: (A)

PICOT frames a focused clinical question by defining five elements: who is being studied, what is done, what it’s compared against, what outcome is measured, and over what time frame.

Population describes the patient group or problem population. Intervention is the treatment or action you plan to apply. Comparison is the alternative or standard of care you’re comparing the intervention to. Outcome is the measurable result you want to see. Time sets the duration for applying the intervention and/or for observing the outcome.

For example: In adults with hypertension, does a low-sodium diet plus exercise (Intervention) compared with usual diet (Comparison) reduce systolic blood pressure (Outcome) within 12 weeks (Time)?

This is why the correct framework uses Population, Intervention, Comparison, Outcome, and Time. Other wording like People, Problem, Control, Trend, or Treatment changes the specificity or meaning of the components and isn’t the standard PICOT formulation.