JMIR-E-collection 'Information Retrieval'

E-collection 'Information Retrieval'

Postmarket Drug Surveillance Without Trial Costs: Discovery of Adverse Drug Reactions Through Large-Scale Analysis of Web Search Queries

Elad Yom-Tov, Evgeniy Gabrilovich

J Med Internet Res 2013 (Jun 18); 15(6):e124

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Background: Postmarket drug safety surveillance largely depends on spontaneous reports by patients and health care providers; hence, less common adverse drug reactions—especially those caused by long-term exposure, multidrug treatments, or those specific to special populations—often elude discovery. Objective: Here we propose a low cost, fully automated method for continuous monitoring of adverse drug reactions in single drugs and in combinations thereof, and demonstrate the...

Health-Related Effects Reported by Electronic Cigarette Users in Online Forums

My Hua, Mina Alfi, Prue Talbot

J Med Internet Res 2013 (Apr 08); 15(4):e59

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Background: The health effects caused by electronic cigarette (e-cigarette) use are not well understood. Objective: Our purpose was to document the positive and negative short-term health effects produced by e-cigarette use through an analysis of original posts from three online e-cigarettes forums. Methods: Data were collected into Microsoft Access databases and analyzed using Cytoscape association graphics, frequency distributions, and interactomes to determine the number and type of health...

ICDTag: A Prototype for a Web-Based System for Organizing Physician-Written Blog Posts Using a Hybrid Taxonomy-Folksonomy Approach

Yamen Batch, Maryati Mohd Yusof, Shahrul Azman Noah

J Med Internet Res 2013 (Feb 27); 15(2):e41

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Background: Medical blogs have emerged as new media, extending to a wider range of medical audiences, including health professionals and patients to share health-related information. However, extraction of quality health-related information from medical blogs is challenging primarily because these blogs lack systematic methods to organize their posts. Medical blogs can be categorized according to their author into (1) physician-written blogs, (2) nurse-written blogs, and (3) patient-written...

Sensitivity and Predictive Value of 15 PubMed Search Strategies to Answer Clinical Questions Rated Against Full Systematic Reviews

Thomas Agoritsas, Arnaud Merglen, Delphine S Courvoisier, Christophe Combescure, Nicolas Garin, Arnaud Perrier, Thomas V Perneger

J Med Internet Res 2012 (Jun 12); 14(3):e85

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Background: Clinicians perform searches in PubMed daily, but retrieving relevant studies is challenging due to the rapid expansion of medical knowledge. Little is known about the performance of search strategies when they are applied to answer specific clinical questions. Objective: To compare the performance of 15 PubMed search strategies in retrieving relevant clinical trials on therapeutic interventions. Methods: We used Cochrane systematic reviews to identify relevant trials for 30...

Using Internet Search Engines to Obtain Medical Information: A Comparative Study

Liupu Wang, Juexin Wang, Michael Wang, Yong Li, Yanchun Liang, Dong Xu

J Med Internet Res 2012 (May 16); 14(3):e74

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Background: The Internet has become one of the most important means to obtain health and medical information. It is often the first step in checking for basic information about a disease and its treatment. The search results are often useful to general users. Various search engines such as Google, Yahoo!, Bing, and Ask.com can play an important role in obtaining medical information for both medical professionals and lay people. However, the usability and effectiveness of various search...

Do Family Physicians Retrieve Synopses of Clinical Research Previously Read as Email Alerts?

Roland Grad, Pierre Pluye, Janique Johnson-Lafleur, Vera Granikov, Michael Shulha, Gillian Bartlett, Bernard Marlow

J Med Internet Res 2011 (Nov 30); 13(4):e101

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Background: A synopsis of new clinical research highlights important aspects of one study in a brief structured format. When delivered as email alerts, synopses enable clinicians to become aware of new developments relevant for practice. Once read, a synopsis can become a known item of clinical information. In time-pressured situations, remembering a known item may facilitate information retrieval by the clinician. However, exactly how synopses first delivered as email alerts influence...

Development and Validation of Filters for the Retrieval of Studies of Clinical Examination From Medline

Nader Shaikh, Robert G. Badgett, Mina Pi, Nancy L. Wilczynski, K. Ann McKibbon, Andrea M. Ketchum, R. Brian Haynes

J Med Internet Res 2011 (Oct 19); 13(4):e82

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Background: Efficiently finding clinical examination studies—studies that quantify the value of symptoms and signs in the diagnosis of disease—is becoming increasingly difficult. Filters developed to retrieve studies of diagnosis from Medline lack specificity because they also retrieve large numbers of studies on the diagnostic value of imaging and laboratory tests. Objective: The objective was to develop filters for retrieving clinical examination studies from Medline. Methods:...