Pinheiro 2009.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLINE and Lilacs in May 2007 Person completing the search not reported Searched by first and last author, and keywords Matching criteria not reported
Data	Included 154 abstracts presented at the 2001 to 2005 American Society of Clinical Oncology meetings Included all abstracts of Brazilian studies
Comparisons	Proportion of abstracts published, overall and by meeting Median time to publication Cumulative proportion of abstracts published
Outcomes	26 of 154 abstracts published 2/12 abstracts presented at the 2001 meeting, 8/26 at the 2002 meeting, 7/46 at the 2003 meeting, 3/32 at the 2004 meeting, and 6/38 at the 2005 meeting published Proportion of abstracts published by time Median time to publication = 13.5 months Cumulative proportion of abstracts published at 78 months showed proportion published = 20.1% (31/154 abstracts) No factors other than meeting year related to proportion of abstracts published reported
Notes	Oncology Funding not reported Abstracts may also be included in report by Chan 2009, Costa 2009
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts of a specific country, so low risk of bias.
Search for publications?	Yes	Searched 2 databases.
Follow‐up time?	Yes	The 2004 and 2005 meeting had less than 48 months follow‐up. All other meetings had at least 48 months follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of meeting year with publication using stratified analysis and log rank analysis.