Asking the right question

Searchable question


P = Patient

I - Intervention

C = Comparison

O = Outcome

PICO example

Searchable question

In a 55 year old male with a history of childhood Varicella Pox, will immunization with the Zostavax vaccine reduce his risk of developing Herpes Zoster?


P = A 55 year-old male with history of childhood Varicella.

I - Zostervax vaccine

C = No vaccine

O = Reduced risk of Herpes Zoster