The challenge of negation in health care searches and queries.
This poster deals with exclusionary queries implemented using the database language SQL and the VA FileMan database system and the retrieval searches involving negated concepts in medical narratives. The poster describes and presents error patterns and designing database queries, underlying comprehension issues regarding negative statements and queries, strategies and software for avoiding false positives in searches, and makes practical recommendations on identifying potential sources of error and avoiding incorrect or misleading results.
Harvey
Valerie J
VJ
Department of Computer and Information Systems, Robert Morris University, USA.
Ruzich
Constance M
CM
Baugh
Jeanne M
JM
Johnston
Bruce
B
Grant
Arthur J
AJ
D003695:Delivery of Health Care; D006801:Humans; D016247:Information Storage and Retrieval; D011381:Programming Languages