ESSENCE: Free Text Query Negation

Description: 

Free text queries are performed by ESSENCE users very often. And increasingly, those free text queries are incorporating negation terms that allow the users to find case definitions when certain terms are not present. This video attempts to explain some of the special cases where negation in free text queries may be confusing for users. The video will mention some features in ESSENCE that you may not be familiar with like the Explain Query button and Advanced Query Tool (AQT). AQT is explained in the online training (https://www.surveillancerepository.org/essence-online-training-course) and training pdf (page 52: https://www.cdc.gov/nssp/documents/essence-training-presentation-phi-conference.pdf). The Explain Query button is a recently added feature found on the Query Portal that shows users more details about the queries they are about to run. Examples of use for this feature can be seen in the ESSENCE Q and A webinar here: https://www.surveillancerepository.org/essence-q-v20.

Primary Topic Areas: 
Original Publication Year: 
2018
Event/Publication Date: 
November, 2018

November 29, 2018

You voted 'up'.

Contact Us

NSSP Community of Practice

Email: syndromic@cste.org

 

This website is supported by Cooperative Agreement # 6NU38OT000297-02-01 Strengthening Public Health Systems and Services through National Partnerships to Improve and Protect the Nation's Health between the Centers for Disease Control and Prevention (CDC) and the Council of State and Territorial Epidemiologists. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of CDC. CDC is not responsible for Section 508 compliance (accessibility) on private websites.

Site created by Fusani Applications