What does the 'P' in PICO stand for?

What does the 'P' in PICO stand for?

• A. Problem
• B. Plan
• C. Patient/Population
• D. Population

Answer: (C)

In this framework, the key idea is how to structure a clinical question to guide evidence searches. The P in PICO represents the patient or population you’re focusing on—the group defined by specific characteristics such as age, condition, disease state, or setting. This helps you clearly specify who the intervention applies to and sets the inclusion criteria for studies you would consider, for example “adults with type 2 diabetes” or “children with persistent asthma.” That’s why the best answer is Patient/Population: it captures the necessary scope of who you’re studying. The other options don’t fit as well: Plan isn’t part of PICO, and Population alone omits the important nuance of the individual patient or specific group, which the P term is intended to convey. Some sources do use “Problem” in place of “Patient,” but the common and most useful formulation in exams and practice is Patient/Population.

In this framework, the key idea is how to structure a clinical question to guide evidence searches. The P in PICO represents the patient or population you’re focusing on—the group defined by specific characteristics such as age, condition, disease state, or setting. This helps you clearly specify who the intervention applies to and sets the inclusion criteria for studies you would consider, for example “adults with type 2 diabetes” or “children with persistent asthma.”

That’s why the best answer is Patient/Population: it captures the necessary scope of who you’re studying. The other options don’t fit as well: Plan isn’t part of PICO, and Population alone omits the important nuance of the individual patient or specific group, which the P term is intended to convey. Some sources do use “Problem” in place of “Patient,” but the common and most useful formulation in exams and practice is Patient/Population.