Secil 2007.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed to December 2004 Person completing the search not reported Searched by all authors and keywords Matching criteria not reported
Data	Included 276 abstracts presented at the 2000 and 2001 European Society of Gastrointestinal and Abdominal Radiology meetings Included all abstracts accepted for oral presentation except for 2 withdrawn abstracts and 6 published before the meeting
Comparisons	Proportion of abstracts published, overall and by meeting Median time to publication Clinical research versus other research North American versus European versus rest of the world origin 'Prospective' versus 'retrospective' versus other design Interventional versus diagnostic Subspecialty Conference year
Outcomes	109 of 276 abstracts published 46/111 abstracts presented at the 2000 meeting, and 63/165 at the 2001 meeting published Proportion of abstracts published by time Median time to publication = 18 months (IQR = 1 to 53 months) Factors related to proportion of abstracts published included 109/264 abstracts describing clinical research versus 0/12 abstracts describing other research published 10/16 abstracts originating from North America versus 83/212 abstracts from Europe versus 16/48 abstracts from rest of the world published 70/153 abstracts with 'prospective' study design versus 39/111 abstracts with 'retrospective' study design versus 0/12 abstracts with other study design published 28/64 abstracts describing therapy versus 81/212 abstracts describing diagnostic tests published
Notes	Radiology ‐ gastrointestinal and abdominal radiology Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts accepted for oral presentation with reasonable exceptions.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Yes	The 2000 meeting had 48 months follow‐up, the 2001 meeting only had 36 months follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of type science, country of origin, prospective status, and type clinical study with publication using stratified analysis and Chi2 test or logistic regression analysis for country of origin.