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SEARCHING FOR A SCREENING QUESTION
For a quick answer to any evidence-based question, the format for a PubMed search is the same:
1) Search for the disease/condition
2) Search for the intervention (drug, surgery, diagnostic test, screening test, prognostic indicator)
3) Add the appropriate "filter" for that particular type of question.
The proper filter for a screening question is to search for the desired level of evidence. For a screening question, the highest level of evidence would be a practice guideline. In the case of screening, it is also advisable to include the term "Mass Screening" in your search to distinguish the question from one of diagnosis.
For example, if you wanted to search for information on whether it would be appropriate to use a PSA test to screen for prostate cancer, you would take the following steps.
1) Click on the link at the bottom of the screen to enter the MeSH database.
In the event that you cannot locate practice guidelines, perform the search as above up to step 4 and enter the term "Sensitivity and Specificity" to your search.