Bernstein 1983.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLARS; date of search not reported Person completing the search not reported Searched by first author Matching criteria not reported Contacted abstract authors directly
Data	Included 177 abstracts submitted to the 1978 American Association for the Study of Liver Diseases meeting Included all abstracts
Comparisons	Proportion of abstracts published Accepted versus rejected for conference presentation Clinical research versus basic science research
Outcomes	106 of 177 abstracts published Proportion of abstracts published by time not reported Factors related to proportion of abstracts published included 56/82 abstracts accepted for presentation versus 50/95 rejected abstracts published 53/101 abstracts describing clinical research versus 53/76 abstracts describing basic science research published
Notes	Gastroenterology ‐ hepatology Funding not reported Data extracted from abstract
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	Yes	Searched 1 database and contacted abstract authors.
Follow‐up time?	Unclear	Date of search not reported.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of acceptance for presentation and type of science with publication using stratified analysis and unspecified statistical tests.