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Scope, completeness, and accuracy of drug information in Wikipedia
Abstract BACKGROUND: With the advent of Web 2.0 tecBACKGROUND: With the advent of Web 2.0 technologies, user-edited online resources such as Wikipedia are increasingly tapped for information. However, there is little research on the quality of health information found in Wikipedia. OBJECTIVE: To compare the scope, completeness, and accuracy of drug information in Wikipedia with that of a free, online, traditionally edited database (Medscape Drug Reference [MDR]). METHODS: Wikipedia and MDR were assessed on 8 categories of drug information. Questions were constructed and answers were verified with authoritative resources. Wikipedia and MDR were evaluated according to scope (breadth of coverage) and completeness. Accuracy was tracked by factual errors and errors of omission. Descriptive statistics were used to summarize the components. Fisher's exact test was used to compare scope and paired Student's t-test was used to compare current results in Wikipedia with entries 90 days prior to the current access. RESULTS: Wikipedia was able to answer significantly fewer drug information questions (40.0%) compared with MDR (82.5%; p < 0.001). Wikipedia performed poorly regarding information on dosing, with a score of 0% versus the MDR score of 90.0%. Answers found in Wikipedia were 76.0% complete, while MDR provided answers that were 95.5% complete; overall, Wikipedia answers were less complete than those in Medscape (p < 0.001). No factual errors were found in Wikipedia, whereas 4 answers in Medscape conflicted with the answer key; errors of omission were higher in Wikipedia (n = 48) than in MDR (n = 14). There was a marked improvement in Wikipedia over time, as current entries were superior to those 90 days prior (p = 0.024).CONCLUSIONS: Wikipedia has a more narrow scope, is less complete, and has more errors of omission than the comparator database. Wikipedia may be a useful point of engagement for consumers, but is not authoritative and should only be a supplemental source of drug information.a supplemental source of drug information.
Added by wikilit team Added on initial load  +
Collected data time dimension Cross-sectional  +
Comments Wikipedia has a more narrow scope, is lessWikipedia has a more narrow scope, is less complete, and has more errors of omission than the comparator database. Wikipedia may be a useful point of engagement for consumers, but is not authoritative and should only be a supplemental source of drug information.a supplemental source of drug information.
Conclusion Wikipedia has a more narrow scope, is lessWikipedia has a more narrow scope, is less complete, and has more errors of omission than the comparator database. Wikipedia may be a useful point of engagement for consumers, but is not authoritative and should only be a supplemental source of drug information.a supplemental source of drug information.
Data source Wikipedia pages  +
Google scholar url http://scholar.google.com/scholar?ie=UTF-8&q=%22Scope%2C%2Bcompleteness%2C%2Band%2Baccuracy%2Bof%2Bdrug%2Binformation%2Bin%2BWikipedia%22  +
Has author Kevin A. Clauson + , Hyla H. Polen + , Maged N. Kamel Boulos + , Joan H. Dzenowagis +
Has domain Health +
Has topic Comprehensiveness + , Currency + , Reliability +
Issue 12  +
Month December  +
Pages 1814-1821  +
Peer reviewed Yes  +
Publication type Journal article  +
Published in The Annals of Pharmacotherapy +
Research design Statistical analysis  +
Research questions To compare the scope, completeness, and accuracy of drug information in Wikipedia with that of a free, online, traditionally edited database (Medscape Drug Reference [MDR]).
Revid 10,936  +
Theories Undetermined
Theory type Analysis  +
Title Scope, completeness, and accuracy of drug information in Wikipedia
Unit of analysis Website  +
Url http://www.ncbi.nlm.nih.gov/pubmed/19017825  +
Volume 42  +
Wikipedia coverage Main topic  +
Wikipedia data extraction Live Wikipedia  +
Wikipedia language English  +
Wikipedia page type Article  +
Year 2008  +
Creation dateThis property is a special property in this wiki. 15 March 2012 20:30:08  +
Categories Comprehensiveness  + , Currency  + , Reliability  + , Health  + , Publications  +
Modification dateThis property is a special property in this wiki. 30 January 2014 20:31:18  +
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