Bello 2013.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed, Google/Google Scholar, and African Journal Online until September 30, 2012 Person completing the search not reported Searched by all authors and keywords Matched abstract to full‐length publication by One author Methodology Results
Data	Included 75 abstracts presented at the 2007 to 2010 Nigerian Association of Urological Surgeons meetings Included all abstracts presented orally
Comparisons	Proportion of abstracts published, overall and by meeting Median time to publication Observational design versus case report versus case series versus other type of study design Basic versus beyond basic versus no use of statistics Retrospective design versus prospective design Subspecialty
Outcomes	18 of 75 abstracts published 3/19 abstracts presented at the 2007 meeting, 8/16 at the 2008 meeting, 6/27 at the 2009 meeting, and 1/13 at the 2010 meeting published Proportion of abstracts published by time Median time to publication = 15 months (range = 2 to 40 months) Factors related to proportion of abstracts published included 13/48 abstracts describing observational design versus 4/18 abstracts describing case report versus 1/7 abstracts describing case series versus 0/2 abstracts describing other types of study designs published 8/41 abstracts with basic use of statistics versus 5/7 abstracts with beyond basic use of statistics versus 5/27 abstracts with no use of statistics published 9/31 abstracts with retrospective design versus 2/14 abstracts with prospective design published
Notes	Urology Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts presented orally.
Search for publications?	Yes	Searched 3 databases.
Follow‐up time?	Yes	The 2009 and 2010 meetings had less than 48 months follow‐up. All other meetings had at least 48 months follow‐up.
Matching?	Yes	Matched by 3 different criteria.
Adjustment for confounding?	Yes	Examined association of meeting year, study design, use of statistics, prospective status, and subspecialty with publication using multivariable logistic regression analysis.