A systematic review protocol describes the rationale, hypothesis, and planned methods of the review. It should be prepared before a review is started and used as a guide to carry out the review.
Library databases can help you search for possible research topics. Using one of the library EBSCOhost databases you could use a search string similar to (need* N2 ("further research" OR investig*)) OR ((evidence OR conclusion) N2 (unclear OR uncertain*)).
For example a search through EBSCOhost MEDLINE for
"health literacy" AND ( (need* N2 ("further research" OR investig*)) OR ((evidence OR conclusion) N2 (unclear OR uncertain*)) )
Retrieved the paper 'The Association Between Health Literacy and Tobacco Use: Results from a Nationally Representative Survey' which contained the phrase "Further research is needed to examine how to best disseminate information regarding the health risks of ECIGs".
This search was created by Lancaster University Library.
The requirements for systematic reviews will mean that your literature search will need to be more complex and thorough than previous literature searching you may have done.
You will need to come up with many synonyms for your search terms, and make sure that you are searching in the title, abstract and MeSH term fields of every database you use.
Make sure you are using the Boolean operators AND, OR and NOT correctly, and make use of other search syntax such as truncation and wildcards to ensure your search is as comprehensive and efficient as possible. Check the help guides on any non EBSCOhost databases that you are using as the syntax will differ between databases.
Using Truncation and Wildcards on EBSCOhost
Syntax | Example |
Truncation | physiol*, midsummer * dream |
Phrase searching | "influenza vaccine" |
Wildcard | Organi?ation, wom?n |
Alternate spelling | p#ediatrics, colo#r |
This article outlines some of the problems you may encounter with Boolean searching:
Many systematic review search strategies use PICO to frame their search. PICO usually stands for Population (or Patient or Problem) - Intervention - Comparison - Outcome.
Population defines the group that you are studying. It may be adults with dementia, or healthy adults or children under 5 with asthma. |
Intervention is the type of treatment that you aim to study, eg a drug or therapy. |
Comparison is another treatment that you aim to compare the first treatment with, it could be a placebo. |
Outcome is the result you intend to measure, for example changes in life expectancy. |
PRISMA reporting standards require that systematic review authors detail the following information about their search process in their review:
EndNote is a software package that enables you to compile and manage your references, and to use them to automatically create in-text citations and bibliographies as you work on your Word documents. Students and staff can download a copy via the software downloads page. You can use Endnote to de-duplicate references found across multiple databases.
Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share research.
A free reference management tool that you can download and use on your desktop as well as use online.