Yoon 2010.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed, Web of Science, Korean Medical Database, KMBase, and National Digital Science LInks between October 2003 and April 2009 Person completing the search not reported Search criteria not reported Matching criteria not reported
Data	Included 475 abstracts submitted to the 2003 to 2008 Korean Society of Gastroenterology and Korea Society of Gastrointestinal Endoscopy meetings Included all abstracts
Comparisons	Proportion of abstracts published Clinical research versus experimental research Subspecialty
Outcomes	95 of 475 abstracts published 25/86 abstracts presented at the 2003 meeting, 34/87 at the 2004 meeting, 15/93 at the 2006 meeting, 13/97 at the 2007 meeting, and 8/112 at the 2008 meetings published Proportion of abstracts published by time not reported Factors related to proportion of abstracts published included 82/422 abstracts describing clinical research versus 13/53 abstracts describing experimental research published
Notes	Gastroenterology ‐ pancreato‐biliary Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	Yes	Searched 6 databases.
Follow‐up time?	Yes	Only the 2003 and 2004 meetings had more than 48 months follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of meeting year, type science, and subspecialty with publication using stratified analysis.