Galang 2011.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed for Quote: "maximum of five years" Search completed by investigator Searched by all authors and keywords Matched abstract to full‐length publication by First or last author Contents
Data	Included 370 abstracts presented at the 2002 and 2003 American Dental Education Association Annual Session and Exhibitions meetings Included all abstracts presented as posters except one abstract not having to do with dental education
Comparisons	Proportion of abstracts published Mean and median time to publication Cumulative proportion of abstracts published 'Positive' versus not 'positive' 'Experimental' versus 'observational' study design Used statistics versus no use of statistics 'Analytic' versus 'descriptive' report Multi‐centered versus single center North American versus elsewhere Funding reported versus without funding reported
Outcomes	71 of 370 abstracts published Proportion of abstracts published by time Mean time to publication = 16 months Median time to publication = 10 months Cumulative proportion of abstracts published at 60 months showed proportion published = 19.2% (71/370 abstracts) Factors related to proportion of abstracts published included 40/234 'positive' (defined as significant results) versus 31/136 not 'positive' abstract results published 19/84 abstracts with 'experimental' study design versus 52/286 abstracts with 'observational' study design published 60/285 abstracts that 'used statistics' versus 11/85 abstracts that did not 'use statistics' published 29/83 abstracts with 'analytical' report versus 31/202 abstracts with 'descriptive' report published 11/29 abstracts with multiple centers versus 60/341 abstracts with a single center published 71/363 abstracts originating from North America versus 1/6 abstracts from elsewhere published 8/28 abstracts with funding reported versus 63/342 abstracts without funding reported published
Notes	Oral health ‐ dental education Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all posters with reasonable exceptions.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Yes	The meetings had a maximum of 5 years follow‐up.
Matching?	Yes	Matched by 2 different criteria.
Adjustment for confounding?	Yes	Examined association of positive results, type science, study design, multi‐center status, North American origin, use of statistics, and funding status with publication using multivariable logistic regression analysis.