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Literature searching for Health Sciences and Medicine

A guide for medical, dentistry and health sciences students undertaking a literature search.

Where do I start?

There are different ways you can approach searching:

Plan & document

If you are new to searching and you have a complex search,  it may be useful to plan before you start and document as you go.

Follow the steps below to:

  • identify keywords
  • think of alternative keywords
  • pull it together in a search strategy

On the go

Alternatively, some people prefer to start by conducting exploratory searches, then build knowledge of keywords and relevant literature as they go.

Steps for planning a search strategy

Follow the steps bellow for a structured approach to create a search strategy from your research question.
 

 

The relationship between moral distress and burnout in frontline workers during COVID-19

CONCEPT 1

moral distress

CONCEPT 2

burnout

CONCEPT 3

frontline workers

CONCEPT 4

covid-19 

 

They can have a similar meaning (alternative terms or be related concepts (broader terms or narrower terms).

CONCEPT 1

moral distress

 

CONCEPT 2

burnout

disengagement

CONCEPT 3

frontline workers

nurses

doctors

paramedics

CONCEPT 4

covid-19 

SARS-CoV-2

pandemic

 

OR

terms relating to the same concept

(doctors OR nurses)
 

 

AND

join concepts together

(doctors OR nurses AND moral distress)

 

   phrase

words in exact order

((doctors OR nurses) AND "moral distress")


We can apply OR to connect keywords  and AND to connect concepts to our table.

CONCEPT 1



moral distress

 

CONCEPT 2


burnout

OR

    disengagement

AND

CONCEPT 3

   
  frontline workers

OR

   nurses

AND

OR

doctors

OR

    paramedics

 

CONCEPT 4

   
   covid-19 

OR

     SARS-CoV-2

AND

OR

pandemic


These search techniques are optional, think carefully if you need them and test they are operating how you intended.

 

TRUNCATION

same word,
different ending

frontline worker*
= frontline worker, frontline workers

 

Truncation searches for variation of word endings.

Think carefully about possible words you are searching for, this is a common cause of irrelevant results.

pandemic* = pandemic, pandemics

pandem* = pandemic, pandemics, pandemonium

pande* = pandemic, pandemics, pandemonium, pander, pandering

You don't need to use truncation.

If truncation is bringing back irrelevant results, you can search for all the variations directly.

 

PROXIMITY

words within a
specific number

frontline ADJ3 worker
=
frontline workers
workers on the frontline
frontline health care workers

  Note: ADJ is used in Ovid databases, check other database for correct letters

 

Proximity searching is based on how closely two or more search terms appear in the results.

This is useful when you are looking for concepts expressed by multiple phrases, or to focus on a particular meaning of a word when you have irrelevant results.

Proximity not working as hoped?

If proximity searching is back irrelevant results, you can

  • try and tweak the adjacency numbers
  • change to AND search
  • change to phrases 


Search string

Applying all steps to our table we can create a single search string.

We need to use round brackets to show the databases what to keep together.

"moral distress" AND (burnout OR disengagement) AND ((frontline adj3 worker*) OR doctor* OR nurse* OR paramedic*) AND ("covid 19" OR "SARS-CoV-2" OR pandemic)

 

Line-by-line search

Although we can use this search string directly in the search box, for Advanced searching we generally take a line-by-line approach for more control.

Each database works slightly differently, but the principles are the same. Each search term is numbered and you join together keywords within a concept using OR (see line 4 below), and concepts with AND (see line 14 below).

1. "moral distress"    

2. burnout    

3. disengagement    

4. 2 OR 3

5. (frontline adj3 worker*)    

6. nurse*    

7. doctor*    

8. paramedic*

9. 5 OR 6 OR 7 OR 8

10. "covid 19"

11. pandemic

12. "SARS-CoV-2"

13. 10 OR 11 OR 12 

14. 1 AND 4 AND 9 AND 13



This video shows line by line searching in an Ovid database.

Activity

Using the steps above create your own search plan document.