Here two library FAQs that may be helpful in finding studies to support your PICOT question:
Additionally, Check out 7 Steps to the Perfect PICO Search
Librarians will be happy to help coach you in your searches, by suggesting databases, search terms, limiters, etc. Sometimes we demonstrate searches to model search techniques that you can use in the future. Our goal is to help you become self-sufficient so that you can find evidence-based content throughout your professional life.
Once we have helped you start some searches, it’s very likely that the resulting articles will differ in quality; as with any search, some will meet your requirements and some will be less useful. This is the point where you will need to do some digging and exercise your critical thinking skills. The level of research you are currently performing can be both time-consuming and sometimes frustrating; but it is always worthwhile!
|Type of evidence||Level of evidence||Description|
|Systematic review or meta-analysis||I||A synthesis of evidence from all relevant randomized, controlled trials.|
|Randomized, controlled trial||II||An experiment in which subjects are randomized to a treatment group or control group.|
|Controlled trial without randomization||III||An experiment in which subjects are nonrandomly assigned to a treatment group or control group.|
|Case-control or cohort study||IV||
Case-control study: a comparison of subjects with a condition (case) with those who don’t have the condition (control) to determine characteristics that might predict the condition.
Cohort study: an observation of a group(s) (cohort[s]) to determine the development of an outcome(s) such as a disease.
|Systematic review of qualitative or descriptive studies||V||A synthesis of evidence from qualitative or descriptive studies to answer a clinical question.|
|Qualitative or descriptive study||VI||
Qualitative study: gathers data on human behavior to understand why and how decisions are made.
Descriptive study: provides background information on the what, where, and when of a topic of interest.
|Opinion or consensus||VII||Authoritative opinion of expert committee.|
When using the Cochrane Library, which is a collection of databases that contain different types of high-quality, independent evidence, you will specifically search two: the Cochrane Database of Systematic Reviews, and the Cochrane Central Register of Controlled Trials. I recommend searching them separately. To do so, access the database at https://libguides.eku.edu/cochrane, select Choose Databases, uncheck all that don't apply, click OK and start searching.