St John 2013.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed to May 2013 Person completing the search not reported Searched by all authors and title Matching criteria not reported
Data	Included 327 abstracts presented at the 2009 Australian Gastroenterology Week meeting Included all abstracts
Comparisons	Proportion of abstracts published 'Advanced' trainee versus other Clinical research versus other University affiliation
Outcomes	112 of 327 abstracts published Proportion of abstracts published by time not reported Factors related to proportion of abstracts published included 78/250 abstracts describing clinical research versus 34/112 abstracts describing basic science research published 58/137 abstracts from authors with university affiliation versus 54/190 abstracts from authors without a university affiliation published 9/67 abstracts presented by 'advanced' trainee versus 103/260 abstracts presented by other person published
Notes	Gastroenterology Funding not reported Data extracted from abstract
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Yes	The meeting had 48 months follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	Yes	Examined association of type of science, university affiliation, and type of presenter with publication using multivariable logistic regression.