Finding Types of Research

What is a Systematic Review?

"A systematic review is a form of secondary research, guided by a detailed review protocol, that gathers primary studies and information from other sources on a clinical or policy question of interest and analyzes the data from these multiple studies to reach a conclusion. A systematic review involves the identification, selection, appraisal, and synthesis of the best available evidence for clinical decision making. A properly conducted systematic review uses transparent and reproducible strategies to reduce bias and instill rigor. It synthesizes information from both published and unpublished sources" (Holly, 2017).

In short, a systematic review is a structured study of studies in which only certain material that fits the predetermined inclusion criteria are analyzed. Systematic reviews and meta-analyses are often done in tandem and reported in one study.

Find Systematic Reviews

As with any type of study, you can narrow your search down to just systematic reviews by adding it as a search term to your search string. See example below:

catheters AND infection AND "systematic review"

In addition, there are specific databases with filters for systematic reviews as shown below.

Library Databases with Systematic Reviews

CINAHL and Medline: Publication Filter

CINAHL and Medline are databases that allow you to limit your search results to systematic reviews only.

To find systematic reviews in CINAHL or Medline, follow the steps below:

  1. Enter the database you want to search through the links above. You will be taken directly to the advanced search page. Enter your keyword (s) into the search boxes. 
  2. Scroll down to the Limit Your Results section. This is where you can add filters to your search to tell the database that you only want articles that fit specific criteria. 
  3. Select Systematic Review from the Publication Type scroll menu.

PubMed: Systematic Review Filter

To find systematic reviews in PubMed, follow the steps below:

  1. Enter the database through the link above.
  2. Search your topic by entering your keywords into the search box and hitting search. 
  3. Select Systematic Review from the Article Type section to the left-hand side of the page.

Note! With any of these searches, you will need to limit to full text to get articles immediately available to you.

Example of a Systematic Review


Holly, C. (2017). Systematic review. In J. Fitzpatrick (Ed.), Encyclopedia of nursing research (4th ed.). Springer Publishing Company.