Skip to content
Penn State University Libraries

Evidence-based Practice Tutorial

Population

nurse and patient

The first part of formulating the question is about the population. What individual or group are you interested in studying? Let’s look at three examples.

  • In our first example, you may be interested in studying newly-graduated registered nurses.
  • A second example might be a colleague working in pediatrics interested in looking at a population of preterm infants.
  • A third example might be a team studying post-operative CAB G patients.

We will use these three examples to illustrate the PICO process.

Questions to ask

  • On what patient group do you want information?
  • Starting with your patient, ask "how would I describe a group of patients similar to mine?"

 

 PREVIOUS  (Step 1)    |    NEXT  (Intervention)