What do the columns on my dissertation usage report mean?

Here's a brief overview about the information on your usage report:

• Abstract, AbstractPreview - only the abstract was accessed
• Citation - only the citation was viewed
• CitedIn - cited by another source
• DocumentImage - Full-text view of the manuscript; the manuscript may have been downloaded, but this is not tracked
• FullTextPreview - just the preview version of the manuscript was accessed, not the complete document
• LinkOut - a link to your ProQuest dissertation listing from LinkOut, an NCBI service that provides links directly from PubMed and other NCBI databases to outside resources.
• ResultItem - your dissertation appeared in the search results for a user, but was not accessed
• Quantity - the number of same-type view sessions by any one customer (for example, if one customer accessed the abstract twice, the quantity would be 2)