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Evidence Based Literature Searching: Types of Questions

Why is the type of question important?

Thinking about the type of question will help you focus in on  literature that is relevant to your PICO question. It can also help point you to an appropriate type of study.

Questions

Diagnosis How to select and interpret diagnostic tests
Therapy How to select treatments to offer patients that do more good
than harm and that are worth the efforts and costs of using them
Prognosis How to estimate the patient's likely clinical course over time and
anticipate likely complications of disease
Harm/Etiology How to identify causes for disease