Objectives: To review the publication fate of abstracts presented at dental conferences, and investigate the association between full publication rate (FPR) and abstract characteristics, conference characteristics, and methodological quality of primary studies.Study Design and Setting: PubMed, EMBASE and Google Scholar were searched from inception to November 2014 for studies that reported at least one FPR of abstracts presented at dental conferences, with a follow-up length of no less than 48 months. were not published more often than negative or nonsignificant abstracts, respectively. In multivariable meta-regression analysis, conferences held in Asia (P<0.001) and at a continental rather than national level (P<0.001) were significantly associated with higher FPR.
Conclusions:Less than one third of abstracts presented at dental conferences were published in full, more than 4 years after the presentation.Keywords: Meeting abstracts; Publication bias; Publishing; Dentistry; Posters; Meta-analysis Running title: Publication fate of dental conference abstractsWhat is new?
Key findingsl Less than one third of abstracts presented at dental conferences were published in full, more than 4 years after the conferences.l Abstracts presented orally, with statistical analyses, about basic science research, and those reported funding were significantly more likely to be published.l No evidence of publication bias was found at this stage of research dissemination.l The location and level of conferences were significantly associated with full publication.
What this adds to what was known?l This study systematically reviewed all primary studies regarding the publication fate of abstracts presented at dental conferences and, by using multivariable meta-regression, provided insight into the roles of conference characteristics and methodological quality (of primary studies) as predictors of full publication.l It adds to the body of evidence that many conference abstracts are never published in full.
What is the implication and what should change now?l When analyzing predictors of full publication, future research regarding the publication fate of conference abstracts should control for the level and location of conferences.
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