![]() Using this supplementary data, the SP vs. 80% P 80% agreement and Kappa upwards of 0.7, thus indicating good concordance between these two raters. Compared to SP first authors, MP first authors more often published clinical trials (96% vs. Results: There were 2,065 first authors identified, of which 88% (n = 1,816) were SP first authors these 1,816 SP first authors represented 75% of publications. ![]() First author-specific characteristics included gender, advanced degrees held, self-designated major clinical specialty, institutional location, and academic rank. Main Outcome(s) and Measure(s): Publication-specific characteristics included National Library of Medicine medical subject headings disease category, clinical trial design, grant funding, coauthor count, collaborating author count, and other study-specific details (e.g., directionality of overall findings). Participants/Exposure: The NEJM author and research project characteristics were compared for the first authors with multiple first author publications (MP) vs. For a sampling of articles, supplementary information was obtained from publicly available resources. Objectives: To support scientific transparency, the “unwritten” NEJM publication priorities and trends were documented.ĭesign/Setting: From 2002 to 2017, PubMed extracts for all original NEJM research articles with a structured abstract (n = 2,419) were analyzed. those not cited during the following year.Importance: High-impact journals (e.g., New England Journal of Medicine ) transform clinical practice these publications have been commonly used to quantify faculty performance in academic medical centers’ promotion and tenure decisions. Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those documents other than research articles, reviews and conference papers. Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. journal self-citations removed) received by a journal's published documents during the three previous years.Įxternal citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents. Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.Įvolution of the number of total citation per document and external citation per document (i.e. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.Įvolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years. ![]() The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values. The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles.
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