Inter-regional differences of authorship in secondary analyses of solid malignancies.

• DOI: 10.1200/jco.2023.41.16_suppl.e13661
• Publication Date: 2023-06-04T14:59:30Z
• Authors: Yazan Hamadneh; Jawad Alrawabdeh; Muntaser Al Zyoud; Nada Wael Odeh; Marah Alzubi; Samer Al Hadidi
• Keywords: Post hoc

e13661 Background: With the increasing number of clinical trials and data availability in recent years, secondary analyses had subsequently increased at a global level. However, results such must be interpreted carefully. Our study aimed to differences based on country residence first author. Methods: We searched OVID database for articles subgroup from year 2000 until Feb 15, 2022. post-hoc, subgroup, secondary, cancer, tumor, breast, colorectal were some terms used search. Original trials, observational cohort studies excluded. The author was categorizing articles. Results: 1491 included final analysis. authors 646 North America (43.9%), 476 Europe (32.4%), 258 East Asia (17.6%), 86 rest globe (5.9%). There significant increase especially last 4 years (<.001). In addition, Asian more likely have medical writing assistance compared other regions American contribution has been decreasing over European world didn’t years. Although publication less funded, those that funded higher chance being by pharmaceutical companies comparison different International US non-US participants companies, assistance, percentage with conflicts interest than only or Conclusions: show there an region international are highly supported companies. [Table: see text]