Chan 2011.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLINE, PubMed, and Scopus to November 2009 Person completing the search not reported Searched by first, second, and last author, and keywords Matched abstract to full‐length publication by Sample size Methodology Results
Data	Included 389 abstracts presented at the 2006 International Conference on Emergency Medicine meeting Included all abstracts except those that were "cancelled"
Comparisons	Proportion of abstracts published Cumulative proportion of abstracts published English versus non‐English language North American versus European versus Australian versus Asian versus rest of the world (South American and African) origin Subspecialty
Outcomes	129 of 389 abstracts published Proportion of abstracts published by time Cumulative proportion of abstracts published at 42 months showed proportion published = 33.4% (130/383 abstracts) Factors related to proportion of abstracts published included 116/314 abstracts with English language versus 13/69 abstracts with non‐English language published 74/193 abstracts originating in North America versus 25/74 abstracts from Europe versus 9/27 abstracts from Australia versus19/67 abstracts from Asia versus 2/15 abstracts from the Middle East versus 0/6 abstracts from rest of the world (South America and Africa) published
Notes	Emergency medicine Funding not reported Data extracted from short report
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all posters with reasonable exceptions.
Search for publications?	Yes	Searched 2 databases.
Follow‐up time?	No	The meeting had 36 months follow‐up.
Matching?	Yes	Matched by 3 different criteria.
Adjustment for confounding?	No	Examined association of origin from English language country, country of origin, and subspecialty with publication using stratified analyses and Chi2 tests.