In the PICO framework, what does O stand for?

In the PICO framework, what does O stand for?

• A. Observation
• B. Outcome of interest
• C. Operator
• D. Original

Answer: (B)

In PICO, the O stands for the outcome of interest—the specific result you want to measure after applying the intervention. This is the patient-centered endpoint that shows whether the intervention had the desired effect, such as pain reduction, improved function, fewer adverse events, or better quality of life. Focusing on the outcome guides what you look for in studies and how you judge their usefulness. The other options don’t fit because the term for who performs the intervention is operator, not the result; observation isn’t the formal label used in PICO for the measured result; and original isn’t related to the framework.

In PICO, the O stands for the outcome of interest—the specific result you want to measure after applying the intervention. This is the patient-centered endpoint that shows whether the intervention had the desired effect, such as pain reduction, improved function, fewer adverse events, or better quality of life. Focusing on the outcome guides what you look for in studies and how you judge their usefulness. The other options don’t fit because the term for who performs the intervention is operator, not the result; observation isn’t the formal label used in PICO for the measured result; and original isn’t related to the framework.