Yentis 1993.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLINE from 1985 to 1990 Person completing the search not reported Searched by first author Matched abstract to full‐length publication by All authors Contents
Data	Included 215 abstracts, which was a systematic selection of abstracts presented at the 1985 American Society of Anesthesiologists, International Anesthesia Research Society, the Anaesthesia Research Society, and Canadian Anaesthetists' Society meetings
Comparisons	Proportion of abstracts published Cumulative proportion of abstracts published by meeting
Outcomes	108 of 215 abstracts published, 54/114 from the American Society of Anesthesiologists meeting, 22/39 from the International Anesthesia Research Society meeting, 19/33 from the Anaesthesia Research Society, and 13/29 from the Canadian Anaesthetists' Society meeting Proportion of abstracts published by time Cumulative proportion of abstracts published at 60 months showed proportion published = 46.5% (53/114 abstracts) for American Society of Anesthesiologists meeting Cumulative proportion of abstracts published at 60 months showed proportion published = 56.4% (22/39 abstracts) for International Anesthesia Research Society meeting Cumulative proportion of abstracts published at 60 months showed proportion published = 57.6% (19/33 abstracts) for the Anaesthesia Research Society meeting Cumulative proportion of abstracts published at 60 months showed proportion published = 44.8% (13/29 abstracts) for Canadian Anaesthetists' Society meeting No factors other than meeting related to proportion of abstracts published reported
Notes	Anesthesiology Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included a random selection of abstracts.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Yes	All meetings had at least 5 years follow‐up.
Matching?	Yes	Matched by 2 different criteria.
Adjustment for confounding?	No	Examined association of meeting with publication using stratified analysis and Chi2 test.