3. Formulate a search strategy
Combine ALL elements
The type of question asked determines:
- the elements used in the subject search (PICO)
- the appropriate study type Limit
| Question type | Subject search | Best Evidence / Systematic Review | Best Single Study |
| Therapy | Population AND Intervention | AND (EBM Reviews Limit OR Meta Analysis) | AND Clinical Queries (Therapy-specific) |
| Diagnosis | Population AND Diagnostic Intervention | AND (EBM Reviews Limit OR Meta Analysis) | AND Clinical Queries (Diagnosis) |
| Prognosis | Population | AND (EBM Reviews Limit OR Meta Analysis) | AND Clinical Queries (Prognosis) |
| Aetiology | Exposure (Intervention) AND Outcome | AND (EBM Reviews Limit OR Meta Analysis) | AND Clinical Queries (Etiology) |
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