Song 2010.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed; date of search not reported Search completed using custom PERL computer program Searched by first and last author Matched abstract to full‐length publication by Results Conclusions
Data	Included 4824 abstracts presented at the 2005 to 2007 United States and Canadian Academy of Pathology meetings Included all abstracts
Comparisons	Proportion of abstracts published, overall and by meeting Mean time to publication Cumulative proportion of abstracts published Oral versus poster presentation Using statistical methods versus not One or more versus no authors from US Subspecialty
Outcomes	1725 of 4824 abstracts published 603/1576 abstracts presented at the 2005 meeting, 555/1588 at the 2006 meeting, and 567/1660 at the 2007 meeting published Proportion of abstracts published by time Mean time to publication = 18 months Cumulative proportion of abstracts published at 24 months showed proportion published = 35.6% (1725/4824 abstracts) Factors related to proportion of abstracts published included 385/838 abstracts presented orally versus 1340/3986 abstracts presented as poster published 637/1733 abstracts using statistical methods versus 1088/3091 abstracts not using statistical methods published 1386/3916 abstracts with at least one US author versus 339/908 abstracts with no US authors published
Notes	Pathology Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Unclear	Date of search not reported.
Matching?	Yes	Matched by 2 different criteria.
Adjustment for confounding?	No	Examined association of meeting year, type of presentation, use of statistical methods, US origin and subspecialty with publication using stratified analysis and Fisher's Exact tests.