کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3151143 1585510 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessment of Publication Bias in Dental Specialty Journals
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Assessment of Publication Bias in Dental Specialty Journals
چکیده انگلیسی

ObjectiveThe purpose of this study was to investigate the presence of publication bias (acceptance of articles indicating statistically significant results).MethodsThe journals possessing the highest impact factor (2008 data) in each dental specialty were included in the study. The content of the 6 most recent issues of each journal was hand searched and research articles were classified into 4 type categories: cross-sectional, case-control, cohort, and interventional (nonrandomized clinical trials and randomized controlled trials). In total, 396 articles were included in the analysis. Descriptive statistics and univariate and multivariate logistic regression was used to examine the association between article-reported statistical significance (dependent variable) and journal impact factor and article study type subject area (independent variables).ResultsA statistically significant acceptance rate of positive result was found, ranging from 75% to 90%, whereas the value of impact factor was not related to publication bias among leading dental journals. Compared with other research designs, clinical intervention studies (randomized or nonrandomized) presented the highest percentage of nonsignificant findings (20%); RCTs represented 6% of the examined investigations.ConclusionsCompared with the Journal of Clinical Periodontology, all other subspecialty journals, except the Journal of Oral and Maxillofacial Surgery, showed significantly decreased odds of publishing an RCT, which ranged from 60% to 93% (P < .05).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Evidence Based Dental Practice - Volume 10, Issue 4, December 2010, Pages 207–211
نویسندگان
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