Hua Fang, Walsh Tanya, Glenny Anne-Marie, Worthington Helen
Cochrane Oral Health Group, School of Dentistry, The University of Manchester, JR Moore Building, Oxford Rd., Manchester M13 9PL, UK.
Cochrane Oral Health Group, School of Dentistry, The University of Manchester, JR Moore Building, Oxford Rd., Manchester M13 9PL, UK.
J Clin Epidemiol. 2016 Jul;75:16-28. doi: 10.1016/j.jclinepi.2016.01.029. Epub 2016 Feb 4.
To review the publication fate of abstracts presented at dental conferences and investigate the association between full publication proportion (FPP) and abstract characteristics, conference characteristics, and methodological quality of primary studies.
PubMed, EMBASE, and Google Scholar were searched up to November 2014 for studies that reported at least one FPP of abstracts presented at dental conferences, with a follow-up length of no less than 48 months.
Sixteen studies involving 10,365 abstracts presented at 52 conferences were included. The pooled FPP was 29.62% (95% confidence interval: 22.90%, 36.81%) for all presented abstracts and 51.97% (95% confidence interval: 43.19%, 60.70%) for randomized controlled trial abstracts. Abstract characteristics significantly associated with higher FPP included reporting of statistical analysis (P < 0.001), oral presentation (P < 0.001), basic science research (P = 0.047), and reporting of financial support (P = 0.009). Abstracts with positive (P = 0.29) or statistically significant results (P = 0.33) were not published more often than negative or nonsignificant results, 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 FPP.
Less than one-third of abstracts presented at dental conferences were published in full more than 4 years after conference presentation.
回顾在牙科会议上发表的摘要的发表情况，并调查全文发表比例（FPP）与摘要特征、会议特征以及原始研究的方法学质量之间的关联。
截至2014年11月，在PubMed、EMBASE和谷歌学术上搜索了报告牙科会议上发表的摘要至少一个FPP且随访时长不少于48个月的研究。
纳入了16项研究，涉及在52次会议上发表的10365篇摘要。所有发表摘要的合并FPP为29.62%（95%置信区间：22.90%，36.81%），随机对照试验摘要的合并FPP为51.97%（95%置信区间：43.19%，60.70%）。与较高FPP显著相关的摘要特征包括统计分析报告（P < 0.001）、口头报告（P < 0.001）、基础科学研究（P = 0.047）以及资金支持报告（P = 0.009）。具有阳性（P = 0.29）或统计学显著结果（P = 0.33）的摘要分别并不比具有阴性或非显著结果的摘要发表得更频繁。在多变量meta回归分析中，在亚洲举行的会议（P < 0.001）以及在洲际而非国家层面举行的会议（P < 0.001）与较高的FPP显著相关。
在牙科会议上发表的摘要中，不到三分之一在会议发表4年多后全文发表。
