When a "PICO" question is developed, the letter that corresponds with the usual standard of care is:
a. P
b. I
c. C
d. O
C
C = Comparison of interest. What is the usual standard of care or current intervention you use now in practice?
P = Patient population of interest. Identify your patients by age, gender, ethnicity, disease, or health problem.
I = Intervention of interest. What is the intervention you think is worthwhile to use in practice (e.g., treatment, diagnostic test, prognostic factor)?
O = Outcome. What result do you wish to achieve or observe as a result of an intervention (e.g., change in patient's behavior, physical finding, change in patient's perception)?
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