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Searching for accurate, evidence-based literature can be complicated. The good news is, most medical databases have developed filters to help you retrieve more precise results.

Search filters (also called hedges) are used to narrow a search and/or focus on a specific publication type, level of evidence, and/or subject area. Filters are constructed using specific database syntax (rules and commands). Search strategies are developed using rules and commands to search a variety of databases and interfaces, including PubMed, Ovid, EMBASE®, and CINAHL. (Nova Scotia Health Library Services, 2021)

Search filters are a quick and efficient way to search for information. They usually fall into two broad categories:

  • Methodological: these help you locate specific types of studies (e.g. clinical trials, cohort studies, systematic reviews)
  • Topic or subject: these cover various subjects or disciplines (e.g. palliative care, aging, lung cancer) 

(Curtin University Library, 2020)

It is important to recognize and identify the impact that using a particular filter may have on your search results. If a particular filter works well in a given context and does not appear to produce a high number of irrelevant results or exclude relevant items, by all means use it. However, you should be mindful that filters can alter what is retrieved from your search (Nova Scotia Health Library Services, 2021).

Several trusted databases, including PubMed, have developed filters to narrow search results by methodology, publication type or question category (e.g. therapy, diagnosis, etiology, prognosis, clinical prediction guides). Reviewing the step-by-step instructions for applying filters in PubMed is a helpful way to get started.  

Applying search filters in PubMed

Let’s work with a research question to see how search filters can assist you, when used properly, to obtain relevant results.

Example research question: Does exercise help improve back pain in adults? 

To help narrow down our results in PubMed we can apply the following filters after we have conducted our search:

  • Age: Based on our example question, let’s use the age filter, specifically ‘adult’, to limit our results.
  • Publication date: A good rule of thumb is to look for evidence published in the last five years (2017-2021), unless your research question specifies otherwise.
  • Study/Publication type: You can filter to only retrieve a certain study type. For this example, let’s select systematic reviews. The best type of study may differ based on your research question.
  • Language: You can limit results to a specific language, such as English or French only.

PubMed search screenshot

Applying these filters decreases our number of results from 7,000 to 34. Although this is a much more manageable number, it is important to be aware that potential results may be missed by applying filters.

It is recommended to use filters produced by trusted groups. For a detailed list of search filters produced by reliable groups, please visit Library Services’ Search Filters page.

Remember to be critical when using filters, so that you do not produce a high number of irrelevant results or exclude relevant items. For more information on search filters, be sure to check out our Searching guide for helpful tips. As always, reach out to Library Services with any questions or requests.

References:

Curtin University Library. (2020). Search Filters. Retrieved from https://libguides.library.curtin.edu.au/c.php?g=863554&p=6631322 

Nova Scotia Health Library Services. (2021). Searching. Retrieved from https://library.nshealth.ca/Searching

Amanda Andrews

Librarian Educator
Cape Breton Regional Hospital, Eastern Zone

02/15/2021
Jackie Zoppa

Not all patient pamphlets need illustrations

The goal of a patient pamphlet is to ensure that patients understand the medical issue they are facing, and the instructions provided by their clinician. As a content creator, you may wish to add illustrations to your pamphlet to enhance patient understanding. For example, a pamphlet on tonsillectomy and adenoidectomy may include a diagram of the head with the adenoids, tonsils, and lingual tonsils labelled. A pamphlet on hip surgery may include a diagram of the structure of the hip.

Diagram of the structure of the hip

Illustrations should not be used if they are not critical to enhancing patient learning

Illustrations should not be included:

  • to make a pamphlet look attractive or 'flashy' 
  • if you do not have copyright permission to use the illustrations (Learn more about image copyright.)
  • if the illustrations were chosen without consideration of diversity and/or inclusion
  • if you do not have high resolution image files (e.g. greater than 300 pixels per inch or a JPEG with a file size of around 1 to 1.5 MB)
When in doubt, keep it simple! Illustrations can be both helpful and distracting. When illustrations are done poorly, they can lead to patient confusion.
Collier, 2011

If including illustrations is critical to enhance patient learning, you will need to decide whether you would like the pamphlet to be printed in black and white or in colour. The front and back covers (the ‘shell’) of all Nova Scotia Health pamphlets printed at the Print Shop include coloured branding. However, you may choose to have the rest of your content, including any extra images or logos added to the cover, printed in black and white or colour.

The Patient Education Team can only send one version of a pamphlet to the Print Shop, either black and white or colour. Please take time to decide whether the content of your pamphlet (including added images or logos on the cover) needs to be printed in colour, since this may significantly increase the cost per copy. Selecting colour also means that if you want black and white copies in the future, you will need to specifically request this from the Print Shop. Remember, you can request a quote from the Print Shop before placing your order.

If you have any questions about creating patient pamphlets, please visit the Content Creator Toolkit. You can also reach out to the Patient Education Team or to Library Services, or book a consult with one of our team members. We're here to support you throughout the process! 

Reference:
Collier R. (2011). Educating patients with pictures. CMAJ: Canadian Medical Association Journal, 183(15), E1094. https://doi.org/10.1503/cmaj.109-3967

 

Jackie Zoppa

Library Technician, Patient Pamphlets
Nova Scotia Hospital, Central Zone

02/08/2021
Carmen Dorey

The following pamphlets were revised or created in January 2021. Please contact pamphlets@nshealth.ca or call 902-464-3146 with any questions about patient pamphlets. You can search for pamphlet PDFs by title, keyword, or four digit pamphlet number in the library catalogue, or see the complete listing of active titles in our Print Code Index

Digestive System 
WI85-0298 Laparoscopic Gallbladder Surgery 

Endocrine System  
WK85-0222 Hydrocortisone Injection
WK85-1499 Osteoporosis Post-Fracture Clinic  

French Translations (en français)  
FF85-1113 Traitements de la rétine (English: WW85-0461)
FF85-1715 Correction du strabisme (English: WW85-0025) 
FF85-1718 Greffe de cornée (kératoplastie) (English: WW85-0136)  
FF85-1766 Exercices pour les jambes (English: WB85-0956)
FF85-1788 Syndrome douloureux régional complexe (SDRC) (English: PM85-1145) 
FF85-2146 NEW Parler de la mort et du deuil aux enfants - Information pour les parents et les personnes qui s’occupent des enfants (English: WD85-2024)
FF85-2147 NEW Deuil : surmonter les difficultés (English: WD85-0977)
FF85-2148 NEW Unité de soins intensifs : vous faire bouger - Hôpital régional Cape Breton (English: IC85-2069)
FF85-2149 NEW Conseils aux parents pour les prises de sang: Pathologie et médecine de laboratoire (English: QY85-2089) 
FF85-2150 NEW Comprendre la douleur (English: PM85-2121)
FF85-2151 NEW Bien s’informer au sujet des antibiotiques (English: WC85-2059)

Geriatrics  
WT85-1802 Welcome to Camp Hill Veterans’ Memorial Building  

Gynecology & Reproductive Health   
WP85-2144 NEW Neonatal Abstinence Syndrome  

Hospitals  
WX85-1213 Contacting Transplant Recipients and Their Families
WX85-1547 About Nova Scotia Health's Smoke and Tobacco Reduction Policy (French: FF85-1548)
WX85-1681 Hospital Fees for Out-of-country Patients/Clients - Annapolis Valley, South Shore, South West (French: 1682)
WX85-1683 Hospital Fees for Out-of-country Patients/Clients - Cape Breton, Guysborough, Antigonish (French: 1684)
WX85-1685 Hospital Fees for Out-of-country Patients/Clients - Colchester East Hants, Cumberland, Pictou (French: 1686)
WX85-1687 Hospital Fees for Out-of-country Patients/Clients - Halifax Area and West Hants (French: 1688)
WX85-2145 NEW How to use Nicotine Replacement Therapy (NRT)

Nursing Units  
WZ85-1022 Welcome to the Medical Day Unit (MDU) - Victoria General Hospital  

Ophthalmology  
WW85-0459 Diabetes and the Eye  

Pain Management
PM85-0277 Nerve Block for Chronic Pain  

Palliative Care  
WD85-1150 Make the Decision, Share Your Life - Cornea Donation Palliative Care Service

Physiotherapy & Rehabilitation  
WB85-1417 Exercises After Your Ankle Injury  
WB85-1428 Shoulder Strengthening Exercises With Tubing

Carmen Dorey

Library Technician, Patient Pamphlets
Nova Scotia Hospital, Central Zone

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