Table 1.

Methodology for Evaluating Coverage of Clinical Literature

7-Step Methodology for Evaluating Coverage of Clinical Literature
1.	Compile journal usage (JU) data collected from hospitals'/health systems' institutional libraries and Morning Report blogs
2.	Evaluate current trends, topics, diseases being treated, and goals by gathering data from government (e.g., Healthy People 2020, discharge diagnosis statistics), industry (e.g., Medscape), and trustworthy health sciences sources (e.g., Doody's Core Titles subjects).
3.	Using the Broad Subject Headings of MeSH, classify the journals used and the topics of data from #2 above to compile JU data and Patient Driven Counts (PDC) / Indicators.
4.	Using the JU's and PDCs, calculate the 25% and 75% thresholds for JU and PDC to divide them into High, Medium and Low categories of subjects potentially needing coverage.
5.	Eliminate those Broad Subjects with low JU's, preclinical, animal, or veterinary sciences.
6.	Calculate number of journals needed per Broad Subject using the proportion method and parallel analysis.
7.	In needed Broad Subjects, rank journals by frequency of usage (JU). Select the number of journals needed for that subject.