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Devin Pelcher, USA<br />Medicine 2.0<br />Toronto, Canada<br />September 18, 2009<br />
Devin P. Pelcher, Pharm.D. Candidate<br />Nova Southeastern University<br />Jennifer Miles, Pharm.D. Candidate<br />Nova S...
Introduction<br />Use of the internet for finding health related information is increasing<br />Survey conducted by Pew Re...
Introduction<br />75%<br />Internet Use<br />use the internet to search for health and medical information<br />Pew Intern...
Introduction<br />Wikipedia is often among the top results returned during internet searches<br />User-edited online encyc...
Introduction<br />2003 survey conducted by the NCES<br />Majority of adults <br />within two lowest <br />literacy levels<...
Objective<br />Previous research has evaluated readability of various types of <br />health-related information<br />Infor...
Methods<br />The sample consisted of the top 50 prescribed drugs<br />Flesch-Kincaid Grade Level (FKGL)<br />Result is rep...
Methods<br />Wikipedia entries saved as HTML files and evaluated in raw text format<br />Outcome measure  ̶  FKGL of sampl...
Methods<br />Text <br />unit-length <br />features<br /># of characters/word, <br /># sentences/paragraph, <br /># of word...
Mean grade level of 15.5 is substantially above the reading level considered <br />to be difficult <br />(9th grade)<br />...
Discussion<br />Only the English version of Wikipedia was tested<br />The sample of 50 drugs is a subset and may not be re...
The reading difficulty of the sample drugs in this study represents a potential barrier to accurate interpretation and com...
For further information please contact:<br />Devin Pelcher, USA<br />pelcher@nova.edu<br />(Please Reference Med2.0)<br />
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Readability of the Top 50 Prescribed Drugs in Wikipedia

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Readability of the Top 50 Prescribed Drugs in Wikipedia

  1. Devin Pelcher, USA<br />Medicine 2.0<br />Toronto, Canada<br />September 18, 2009<br />
  2. Devin P. Pelcher, Pharm.D. Candidate<br />Nova Southeastern University<br />Jennifer Miles, Pharm.D. Candidate<br />Nova Southeastern University<br />Kevin A. Clauson, Pharm.D.<br />Nova Southeastern University<br />Qing Zeng-Trietler, Ph.D.<br />Harvard Medical School<br />SasikiranKandula, M.S.<br />Harvard Medical School<br />Special thanks to Lisa Ferguson <br />and Jennifer Parker<br />Authors<br />
  3. Introduction<br />Use of the internet for finding health related information is increasing<br />Survey conducted by Pew Research Center <br />74% of American <br />adults are currently <br />using the internet<br />Internet Use<br />Respir Care. 2008 Oct;53(10):1310-5. <br />Pew Internet & American Life Project. Dec 2008<br />
  4. Introduction<br />75%<br />Internet Use<br />use the internet to search for health and medical information<br />Pew Internet & American Life Project. Dec 2008<br />
  5. Introduction<br />Wikipedia is often among the top results returned during internet searches<br />User-edited online encyclopedic reference that is freely accessible<br />Since 2001<br />260 languages<br />2.5 millionarticles in <br />English<br />Professional language may be difficult for lay public to understand<br />Wikipedia<br />Wikipedia. Apr 2009 <br />
  6. Introduction<br />2003 survey conducted by the NCES<br />Majority of adults <br />within two lowest <br />literacy levels<br />DHHS considers information written at:<br />NCES: National Center for Education Statistics<br />DHHS: Department of Health and Human Services<br />Literacy<br />4th to 6th<br />grade<br />easy<br />7th to 9th<br />grade<br />average<br />above 9th grade<br />difficult<br />NCES. Sept 2006<br />Respir Care. 2008 Oct;53(10):1310-5. <br />
  7. Objective<br />Previous research has evaluated readability of various types of <br />health-related information<br />Informed consent forms, printed journals and other internet sites<br />The purpose of <br />this study was to <br />investigate the <br />readability of <br />drug information <br />in Wikipedia<br />Respir Care. 2008 Oct;53(10):1310-5. <br />J Community Health. 2005 Jun;30(3):213-9. <br />BMJ.1992 Nov 2;305(6864):1263–1264.<br />
  8. Methods<br />The sample consisted of the top 50 prescribed drugs<br />Flesch-Kincaid Grade Level (FKGL)<br />Result is reported as a grade level<br />Sample &<br />FKGL<br />Instrument<br />(.39 x ASL) + (11.8 x ASW) – 15.59<br />SFI Medical. 2008 <br />Respir Care. 2008 Oct;53(10):1310-5. <br />
  9. Methods<br />Wikipedia entries saved as HTML files and evaluated in raw text format<br />Outcome measure ̶ FKGL of sample Wikipedia entries, reported as descriptive statistics<br />The same outcome measure was repeated for HIReA and HIReA extracts<br />FKGL<br />Testing &<br />Outcome<br />
  10. Methods<br />Text <br />unit-length <br />features<br /># of characters/word, <br /># sentences/paragraph, <br /># of words/sentences<br />HIReA<br />Extract<br />text features<br />(four categories)<br />1<br />2<br />3<br />4<br />Syntactic <br />features<br /># of Parts-of-Speeches/sentence <br />(e.g., verb, noun, pronoun, etc..)<br />Familiarity scores of terms and <br />concepts from open access <br />collaborative (OAC) consumer <br />health vocabulary<br />Semantic<br />features<br /># of overlapping concepts in <br />adjacent sentences<br />Cohesion<br />AMIA AnnuSymp Proc 2008:353-7.<br />
  11. Mean grade level of 15.5 is substantially above the reading level considered <br />to be difficult <br />(9th grade)<br />Discussion<br />Further analysis is recommended to assess any correlation between word count, grammar/spelling recommendations and FKGL score <br />Functionally literate individuals may still lack the skills needed to make adequate health decision<br />Individuals with differing literacy levels can access Wikipedia so it may be best to write information at a level that is considered easy to read<br />Respir Care. 2008 Oct;53(10):1310-5. <br />NNLM. June 2008 <br />
  12. Discussion<br />Only the English version of Wikipedia was tested<br />The sample of 50 drugs is a subset and may not be representative of all drugs within Wikipedia<br />Words not found in the dictionary may be handled differently when scores are calculated using the same readability tools<br />Limitations<br />
  13. The reading difficulty of the sample drugs in this study represents a potential barrier to accurate interpretation and comprehension of the drug information presented in Wikipedia<br />Conclusion<br />
  14. For further information please contact:<br />Devin Pelcher, USA<br />pelcher@nova.edu<br />(Please Reference Med2.0)<br />

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